Using simple mathematical operations, we can conclude that Roanne will earn $10 in 1 hour.
What are mathematical operations?A mathematical "operation" is the process of calculating a value utilizing operands and a math operator.
There are predefined rules associated with the math operator's symbol that must be applied to the supplied operands or numbers.
The order of operations refers to the rules that govern how to solve an expression with several operations.
Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction are all referred to as PEMDAS (from left to right).
So, we know that:
Roanne earns $5 for 1/2 hour.
Roanne will earn in 1/2 * 2 = 1 hour:
5 * 2 = $10
Therefore, using simple mathematical operations, we can conclude that Roanne will earn $10 in 1 hour.
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Add -13[tex]\frac{1}{4}[/tex]+ 4[tex]\frac{3}{4}[/tex] Write your answer as a mixed number in simplest form.
Answer:
Step-by-step explanation:
3 1/4
what is this in Algebra tiles (x-1) (x+3)
please help me.
The area of a rectangle with the dimensions (x-1) and (x+3) is x²+2x-3 square units.
Given that, the dimensions of a rectangle (x-1) and (x+3).
What is the area of a rectangle?The area occupied by a rectangle within its boundary is called the area of the rectangle. The formula to find the area of a rectangle is Area = Length × Breadth.
Here, the area of a rectangle
= (x+3)×(x-1)
= x²+3x-x-3
= x²+2x-3
Hence, the area of a rectangle with the dimensions (x-1) and (x+3) is x²+2x-3 square units.
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"Your question is incomplete, probably the complete question/missing part is:"
Find the area of a rectangle with the dimensions (x-1) and (x+3).
(-2x + 9) + ( 3x - 4)
the question is in the image
Answer:
1. The negative flips the parabola upside down so there is a maximum
2. The 1/2 means there is a vertical shrink
3. -3 means the graph moves to the RIGHT 3 units (X sign always changes)
4. +12 means the graph shifts up 12 units
Step-by-step explanation:
A taxi ride in a large city costs $2.75 plus 5 for each mile traveled. write an equation to represent the situation where D is the distance traveled and see is the total cost of the trip. if Brandon traveled 9.5 miles by taxi how much was the cost C of his taxi ride?
Answer: $50.25
Step-by-step explanation:
First, we will write an equation to represent this situation.
C = $2.75 + $5D
Next, we will substitute 9.5 miles into D and solve.
C = $2.75 + $5D
C = $2.75 + $5(9.5)
C = $50.25
Answer:
(a) c = 2.75 + 5d
(b) $50.25
Step-by-step explanation:
(a)
The information tells us the following:
Cost of a taxi ride = $2.75 + (5 * number of miles travelled)
We can use the variables c and d to represent the descriptions:
c = 2.75 + 5d
(b)
Substitute 9.5 into the equation as d:
c = 2.75 + 5(9.5)
Simplify:
c = 2.75 + 47.5
c = 50.25
Therefore, the cost of a 9.5 mile ride is $50.25.
For a family living in Southern Mississippi, the probability of owning a dog is 0.4, the
probability of owning a cat is 0.5, and the probability of owning both a cat and a dog is
0.12.
What is the probability that a family living in Southern Mississippi owns a cat or a dog?
Hence, the probability that a family living in Southern Mississippi owns a cat or a dog is [tex]0.78[/tex].
What is the probability?
Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event.
The value is expressed from zero to one. Probability has been introduced in Maths to predict how likely events are to happen.
The meaning of probability is basically the extent to which something is likely to happen.
Here given that,
For a family living in Southern Mississippi, the probability of owning a dog is [tex]0.4[/tex], the probability of owning a cat is [tex]0.5[/tex], and the probability of owning both a cat and a dog is [tex]0.12[/tex].
Probability od owing a dog is
[tex]P(A)=0.4[/tex]
Probability of owing a cat is
[tex]P(B)=0.5[/tex]
Probability pf owing both a cat and a dog is
[tex]P(A[/tex]∩[tex]B)=0.12[/tex]
As we know,
[tex]P(A[/tex]∪[tex]B)=P(A)+P(B)-P(A[/tex]∩[tex]B)[/tex]
[tex]P(A[/tex]∪[tex]B)=0.4+0.5-0.12[/tex]
[tex]P(A[/tex]∪[tex]B)=0.78[/tex]
Hence, the probability that a family living in Southern Mississippi owns a cat or a dog is [tex]0.78[/tex].
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1. Line L contains points (4, -1) and (4,9). Point P has coordinates (1,6)
The distance between the point and the line is 3 units.
Find the equation for line L
Begin by finding the slope of the line through the given points, (4,-1) and (4,9) ; its intercept:
m = (y₂ - y₁) / (x₂ - x₁)
= (9 - (-1) ) / 4 - 4
= 10 / 0
= Undefined
Because the slope is undefined, then line L is a vertical line which has an x-intercept of (4,0):
x=4
Because, line L is vertical, then the line w perpendicular to it is a horizontal line that passes through (1,6)(1,6) so its equation is y=6. Hence, L and w intersect at (4,6) which we will denote as Q.
The perpendicular distance is the distance from point P(1,6) to point Q(4,6) which is simply the absolute value of the difference of the x-coordinates:
d = | 1 - 4 |
= |-3|
= 3
Hence, The distance between the point and the line is 3 units.
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#12: A train left Philadelphia at 8 AM on July 1st. It traveled
2,864 miles to Portland, Oregon, arriving at 9AM on July 4th.
What was the average rate of change of the train in miles per
hour?
Round to the nearest hundredth
Answer: 39.23 miles per hour
Step-by-step explanation:
1 day = 24 hour
3 days = 72 hours
Add one more hour for both to get to 9 AM, so it will take 73 hours to get there.
Now we find the average rate of change.
We take 2864 divided by 73 = 39.23 miles per hour
Find the scale factor
Please help me!
Answer:
[tex]\frac{7}{5}[/tex] or 7:5
Step-by-step explanation:
You are going from the smaller triangle to the larger.
Let x = the scale factor. Find two corresponding sides that you know both lengths.
50x = 70 Divide both sides by 50
x = [tex]\frac{70}{50}[/tex] Divide both the numerator and denominator by 10
[tex]\frac{7}{5}[/tex]
Calculate the size of the following marked angles:
v, w, x and y.
The measures of the angles are v = 80°, y = 100°, w = 45°, and x = 55°.
What is a cyclic quadrilateral?An inscribed four-sided polygon in a circle is known as a cyclic quadrilateral. With the specified side lengths, it has the largest area feasible.
Given the quadrilateral inside a circle.
The angle v is given by:
45° +v + 55°=180°
v + 100° = 180°
v = 180° - 100°
v = 80°
Since the quadrilateral is cyclic, the sum of its opposite angle is 180°.
Therefore,
y + v = 180°
y + 80° = 180°
y = 100°
Using the property of cyclic quadrilateral, it follows:
w = 45° and x = 55°
Hence, the measures of the angles are v = 80°, y = 100°, w = 45°, and x = 55°.
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Graph the following features: Y intercept = -3 Slope = 4/5
The equation of line where the y intercept is -3 and slope is 4/5 is
y = ( 4/5 )x - 3
What is an Equation of a line?
The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation of line be represented as A
Now , the equation A is y = mx + b
The y intercept of the line b = -3
The value of b = -3
The slope of the line m = 4/5
The value of m = 4/5
Now , substituting the values in the equation of line , we get
y = mx + b
y = ( 4/5 )x + ( -3 )
y = ( 4/5 )x - 3
The graph of the equation y = ( 4/5 )x - 3 is given below
Therefore, the value of the equation of line A is y = ( 4/5 )x - 3
Hence , The equation of line where the y intercept is -3 and slope is 4/5 is
y = ( 4/5 )x - 3
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solve for 2x² = 80?
Answer:
x=2√10,−2√10
Step-by-step explanation:
Quanta Indutrie old $325,000 of conumer electronic during July under a nine-month warranty. The cot to repair defect under the warranty i etimated at 4. 5% o-
the ale price. On November 11, a cutomer wa given $220 cah under term of the warranty
The journal entry for the July 31 sales and November 11 cash payment is shown below .
In the question ,
it is given that ,
the amount for which Qantas Industries sold electronics during July under a nine-month warranty is = $325000 ,
cost to repair defects is = 4.5 percent of sales price .
So , the cost to repair is = 4.5% × 325000 = $14625 .
So , the journal entry for July 31 is
Warranty expense Debit 14625
Estimated warranty liability/warranty payable Credit 14625
and the journal entry for November 11 is :
Estimated warranty liability /warranty payable Debit 220 ,
Cash Credit 220 .
Therefore , the Journal entry is shown above .
The given question is incomplete , the complete question is
Qantas Industries sold $325,000 of consumer electronics during July under a nine-month warranty. The cost to repair defects under the warranty is estimated at 4.5% of the sales price. On November 11, a customer was given $220 cash under terms of the warranty. Provide the journal entry for the estimated warranty expense on July 31 for July sales. Provide the journal entry for the November 11 cash payment .
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Si en un Salón hay 25 estudiantes de los cuales 12 son varones ¿Cual es la razón de varones a hembras?
La razón que buscamos para los números de estudiantes es:
12:13
¿Cual es la razón de varones a hembras?Sabemos que si de un numero N podemos separar 2 grupos, de tal forma que hay a elementos del grupo A y b elementos del grupo B, la razon de el grupo A al grupo B es a:b
En este caso sabemos que hay 25 estudiantes y hay 12 varones, entonces hay:
25 - 12 = 13 "hembras"
Entonces la razon que buscamos es:
12:13
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Will swims a total of 45.6 laps in 2.85 hours. How many laps does he swim each hour?
The number of swims that Will swims by using decimal divisions is 16 laps in each hour.
What is decimal division?
When dividing decimals, the divisor must be converted to a whole number by moving the decimal point to the right. The dividend's decimal point is then carried up to the same number of places to the right, and the resulting numbers are divided in the same manner as regular long division.
Given, Will swims a total of 45.6 laps in 2.85 hours
That is, 2.85 hours = 45.6 laps
or, 1 hour = 45.6/2.85 = 16 laps
Hence, he swims 16 laps each hour.
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how many solutions does the equation 4+3−1=2(2+2)−2 have?
Answer:
1
Step-by-step explanation:
This equation only has 1 solution
In a survey of 2000 people who owned a certain type of car, 1300 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?
Answer:
65%
Step-by-step explanation:
65% of 2,000 = 1300
........
Answer:
Step-by-step explanation:
Would buy again customers are people satisfied.
Therefore we have
satisfied overall people surveyed
In numbers, this looks like
1300/2000
Simplifying we get
13/20
If you use a calculator then you can input this equation. However, if you want to be big-brained you can use simple math to get the decimal answer fast.
13/20 = (13•5)/(20•5) = 65/100 = 0.65
But if you need a percent value then you are not done!
0.65 is not a percent. To get a percent you multiply your fraction or decimal by 100. Therefore we get 0.65•100 = 65%
65% of people would buy the car again. Therefore 65% of people are satisfied with that car.
Alex has $600 in her checking account. She wants to spend a part of this money on a computer.
She wants to have at least $250 left in her checking account after buying the computer. Write an
inequality that can be used to find t, the amount of money in dollars that Alex can spend on the
computer, and solve fort.
Amount of computer can be 350 or more than 350.
What do you mean by inequality?
Inequalities specify the relationship between two values that are not equal. Equal does not imply inequality. Typically, we use the "not equal sign ()" to indicate that two values are not equal. But several inequalities are utilised to compare the numbers, whether it is less than or higher than.
Inequality is a mathematical statement that uses the inequality symbol to illustrate the relationship between two expressions.
It is given that Alex has $600 in her checking account and She wants to have at least $250 left in her checking account after buying the computer.
Let the amount of computer be t
According to the question , inequality become:
600 - t ≥ 250
600 - 250 ≥ t
350 ≥ t
Therefore, amount of computer can be 350 or more than 350.
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a prestigious program accepts 2 out of every 9 applicants per yer. if the program accepted 360 applicants, how many applicants were not accepted?
If a prestigious program accepts 2 out of every 9 applicants per year than the program will accept 360 applicants out of 1620.
What is ratio math example?An ordered pair of numbers a and b, represented as a / b, is a ratio if b is not equal to 0. A proportion is an equation that sets two ratios at the same value. For instance, you could express the ratio as follows: 1: 3 if there is 1 boy and 3 girls (for every one boy there are 3 girls)
What is a equation example?The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.
the ratio is given:
2/9 = 360/x
solving for the value of x;
x/9=360/2
x=(180)9
x=1620
this is the required value of applicants that were not accepted.
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what is the answer of this question?
Step-by-step explanation:
The given mass of the Earth is 5.972 × 10²⁴
The given mass of the Jupiter is 1.898 × 10²⁷
Now,
1.898 × 10²⁷ ÷ 5.972 × 10²⁴
= 0.3178 × 10³ = 317.8
Thus, Jupiter is 317.8 heavier than Earth
For the function f(x) shown graphed below, over which of the following intervals is f(x) <0?
The function f(x) is greater than zero when the value of x lies in between -3 and 5 and this can be determined by using the given graph.
What is graph?Graph is a mathematical representation of a Networks and it's describes the relation between lines and points.
The graph of the function f(x) is given.
The following steps can be used in order to determine the interval for f(x):
Step 1 - The value of f(x) means the value of y.
Step 2 - The value of f(x) is positive when the graph of f(x) is in the first or in the second quadrant.
Step 3 - So, according to the graph function f(x) is positive when the value of x is in between -3 and 5.
Therefore, the correct option is 3).
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Nora placed 12 cans in each box.How many boxes will she need if she has 240 cans?
Answer:
20 boxes
Step-by-step explanation:
12 cans = 1 box
240 = x
apply rule of three
(240/12) x 1 = x
20 = x
Answer:
She will need 20 boxes
Step-by-step explanation:
Take the total number of cans and divide by the number of cans per box
240/12
20
She will need 20 boxes.
A company sold 7.1 million items in a two-year period. Sales increased by 100,000 the second year. How many were sold the second year?
Answer:
I think it's 3650000
Step-by-step explanation:
7.1 mil ÷ 2 = 3550000
3550000 + 100000 = 3650000
15 = 3t
Joe’s car has a 15 gallon fuel tank and an average fuel economy of 20 miles per gallon. He is planning a road trip where he’ll be driving on the freeway at 60 miles per hour for many hours. The equation above represents the time t (in hours) that it will take for his tank to be empty. What does the 3 represents?
A 3 is the product of his car’s fuel economy and the number of hours
B 3 is the ratio of his speed and his car’s fuel economy.
C 3 is the product of his car’s fuel tank capacity and his speed
D 3 is the ratio of his car’s fuel tank capacity and his fuel economy.
B) 3 is the ratio of his speed and his car's fuel economy.
What is speed?Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is traveling along a path. In other words, velocity is a vector, whereas speed is a scalar value.
Calculation:[tex]\frac{speed}{fuel economy} =\frac{\frac{60 miles}{hour} }{\frac{20 miles}{gallon} } \\\frac{speed}{fuel economy}={\frac{60 miles}{hour} .{\frac{gallon}{20 miles} }\\[/tex]
[tex]\frac{speed}{fuel economy}=\frac{3 gallons}{hour}[/tex]
Inserting this 3 in the given equation 15 = 3t and including each term, we see the units cancel out:
[tex]15 gallons = \frac{3 gallons}{hour}.t(hours)[/tex]
3 is the ratio of his speed and his car's fuel economy.
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Andrew just started a running plan where he runs 12 miles the first week and then increases the number of miles he runs by 5% each week. If he keeps up this plan for 10 weeks, how many total miles would Andrew have run, to the nearest whole number?
Answer:
18 miles.
Step-by-step explanation:
You start with 12 miles and then you first need to figure out what 5% of that is by doing the equation x/12 = 5/100 and you will then get .6. Then you multiply that number by 10 (one for each week) getting 6. Then you add the 6 to your starting total to get 18.
.... i need help past due
any p/q combination other than 50%/50% will result in a higher sample size because p times q is in the numerator of the formula. true false
Using the formula of the combination and for the values of 'p' and 'q'. The statement is false.
What do you mean by combination?Combinations are mathematical operations that count the number of potential configurations for a set of elements when the order of the selection is irrelevant. You can choose the components of combos in any order.
What is the formula for combination?The formula is:
[tex]C(p,q) = \frac{p!}{q!(p-q)!}[/tex]
p=4 and put q=0 to 4
C(4,2) > C(4,0),C(4,1),C(4,3),C(4,4)
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Find the total surface area of this triangular prism 13cm 5cm 12cm 9cm 15cm 20cm.
The surface area of the triangular prism is 924 cm².
What is the triangular prism?
When a prism has three rectangular sides and two triangular bases, the prism is said to be triangular. A pentahedron, that is.
Volume is calculated using the formula volume = 0.5 * b * h * length, where b is the triangle's base length, h is its height, and length is the prism length.
Area is defined as length * (a + b + c) + (2 * base area), where a, b, and c are the triangle's sides and base area is the triangle's base area.
The surface area is equal to the area of the two triangles + area of the three rectangles.
Area of two triangles:
12 × (9+5) × 1/2
= 84
84(2) = 168
Area of the three rectangles:
15 × 20 + 13 × 20 + 14 × 20
= 840
840 + 84
The surface area of the triangular prism is 924 cm².
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Given circle E with diameter CD and radius EA. AB is tangent to E at A. If
AD = 12 and EA = 13, solve for AC. Round your answer to the nearest tenth if
necessary.
The line AC from the diagrammatic expression of the tangent of the circle shows that line AC is 24.0
What is the tangent of a circle?A tangent of a circle is a line that intersects the circle at a single point. The site at which the tangent intersects the circle is referred to as the site of tangency.
From the given information:
Line |CD| = Diameter
Line |EA| = radius = 18
Line |DB| = 12
Then, we can infer that line EA = DE since they are both (radii of the circle.)
Line |DE| = |EA| = 18
By using the formula for Pythagoras' theorem, we can find line |EA|.
hyp² = opp² + adj²
where;
Line |BE| = hypotenuse = DB + BE = 12 + 18 = 30
Line |AB| = opposite (x) = ???
Line |EA| = adjacent = 18
Thus;
30² = x² + 18²
900 = x² + 324
-x² = -900 + 324
x = √576
x = 24.0
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1.25/0.06 = z−6 /2.4 help quickly
Answer:
z = 56
Step-by-step explanation:
I'll assume 1.25/0.06 = z−6 /2.4 is actuallY: 1.25/0.06 = (z−6)/2.4 (and not 1.25/0.06 = z−(6 /2.4)).
1.25/0.06 = (z−6)/2.4
1.25*(2.4) = (z−6)*(0.06) [Multiply both sides by 0.06 and then 2.4]
3 = 0.06z - 0.36
3.36 = 0.06z
z = (3.36/0.06)
z = 56