Answer:
40%Step-by-step explanation:
Step one:
given data
expected customers= 1200
actual customers= 725
the percent error= (actual-expected)/expected
substituting the given values we have'
%error=725-1200/1200
%error=475/1200
%error=0.395
To the nearest tenth we have 0.4
%error=0.4*100
%error=40%
Hence the percent error is 40%
Answer:
40%
Step-by-step explanation:
Which first step for solving the given system using substitution results in an equation without fractions? Solve for x in the first equation. Solve for y in the first equation. Solve for x in the second equation. Solve for y in the second equation.
Answer:
solve for x in the second equation is correct
Step-by-step explanation:
Here is the complete question
Which first step for solving the given system using substitution results in an equation without fractions?
(2x+6y=7
(6x + 18y = 24.... 2
Solve for x in the first equation,
Solve for y in the first equation,
Solve for x in the second equation
The best equation to she will be equation 2 since all the coefficients are end numbers
Let us make x t subject f the formula from equation 2;
From 2: 6x+18y = 24
Subtract 18y from both sides
6x+18y-18y = 24-18y
6x = 24-18y
Divide through by 6
6x/6 = 24/6 - 18y/6
x = 4-3y.
You can see that the resulting expression of x is not a fraction. Hence solve for x in the second equation is correct
Answer:
b
Step-by-step explanation:
edit:
the one after that is b
A= 1
B= 2
C= below
Which relation is not a function?
Answer:
C
Step-by-step explanation:
When looking for a functional X cannot repeat itself and the answer C
19 is repeated twice (19, 11) and (19, 10)
Simplify the rational expression. (Your final answer should have one term.)
[tex]\frac{3}{4} - \frac{2}{9} + \frac{3}{2}[/tex]
Answer:
[tex]\frac{73}{36}[/tex]
Step-by-step explanation:
[tex]\frac{3}{4}[/tex] - [tex]\frac{2}{9}[/tex] + [tex]\frac{3}{2}[/tex]
1. Convert all the fractions to a common denominator.
For this problem, the common denominator will be 36
[tex]\frac{3}{4}[/tex] * 9 = [tex]\frac{27}{36}[/tex]
[tex]\frac{2}{9}[/tex] * 4 = [tex]\frac{8}{36}[/tex]
[tex]\frac{3}{2}[/tex] * 18 = [tex]\frac{54}{36}[/tex]
2. Substitute the values back into the equation, and solve
[tex]\frac{3}{4}[/tex] - [tex]\frac{2}{9}[/tex] + [tex]\frac{3}{2}[/tex]
= [tex]\frac{27}{36}[/tex] - [tex]\frac{8}{36}[/tex] + [tex]\frac{54}{36}[/tex]
= [tex]\frac{19}{36}[/tex] + [tex]\frac{54}{36}[/tex]
= [tex]\frac{73}{36}[/tex]
Answer:
2 1/36Step-by-step explanation:
3/4 - 2/9 + 3/2 =3/4*9/9 - 2/9*4/4 + 3/2*18/18 = ⇒ Common denominator LCM(4,9,2)=3627/36 - 8/36 + 54/36 = (27 - 8 + 54)/36 =73/36 =2 1/36PLEASE HELP ME 10 POINTS THIS HAS 2 PARTS
Answer:
B: 250
Y: Total cost
M:50
X: Hours renting
Equation: y=50x+250
Select the correct answer for each statement.
will yield consecutive odd integers.
k+10, k+12, K+14
k+2. k+3,k+4
Answer:
k+10, k+12, k+14
Step-by-step explanation:
If k+10 is odd, then so is k+12 and k+14.
If k+2 is odd, then k+3 cannot be odd.
Jack wants to buy a coat that costs $74.95. The sales tax rate in his city is 6,4%. What is the total cost for the coat? Round to the nearest cent
Answer:
$79.7468
Step-by-step explanation:
6.4% of 74.95 is 4.7968, since 6.4 * 74.95 is 479.68, and if you divide that by 100, you will get 4.7968. 4.7968 + 74.95 = $79.7468
Here we want to find the total cost of a coat given that we know its cost and the sales tax.
By working with percentages, we will find that the total cost will be $79.75
Applying the tax:
So the cost of the coat is $74.95, and then we must pay an extra 6.4%
Then we must pay a total of the 100% + 6.4% = 106.4%
And the 100% is equivalent to $74.95
Then the 106.4% is equivalent to:
(106.4%/100%)$74.95 = $79.75
So the total cost of the coat is $79.75
If you want to learn more about percentages, you can read:
https://brainly.com/question/843074
The period of a pendulum is the time the pendulum takes to swing back and forth. The function relates the length L= 0.81t in feet of a pendulum to the time t in seconds that it takes to swing back and forth. A convention center has a pendulum that is 90 feet long. Find the period.
Answer: 111.11 seconds
Step-by-step explanation:
Given: The period of a pendulum is the time the pendulum takes to swing back and forth
The function relates the length [tex]L= 0.81t[/tex] in feet of a pendulum to the time t in seconds that it takes to swing back and forth.
If L= 90 feet then put this in the above function, we get
[tex]90=0.81t\\\\\Rightarrow\ t=\dfrac{90}{0.81}\\\\\Rightarrow\ t=111.1111111\approx111.11\text{ seconds}[/tex]
Hence, the period = 111.11 seconds
In an election, Mr. Jones received 70% of the 1,500 votes cast. How many votes did Mr. Jones receive?
Votes Cast
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
900
1,050
1,125
1,200
Answer:
Answer B or 1,050
Step-by-step explanation:
This is based of what someone is saying so there
Answer:
b
Step-by-step explanation:
Two people can paint a room in t hours, where t must satisfy the equation
t4 + t12 = 1. How long will it take the two people to paint the room?
Answer:
564cvbfgrg
Step-by-step explanation:
PROBLEM. Riley has a rectangular shaped patio that is 13 feet long by 15 feet wide. He wants to DOUBLE THE AREA of the patio by increasing the length and width by the same amount. 1. Write an EQUATION that represents the total area of Riley's proposed patio. AND 2. To the NEAREST TENTH of a foot, what is the LENGTH and WIDTH of the new patio?
Answer:
18.8 ft
20.8 ft
Step-by-step explanation:
Given that :
Dimension of rectangular patio:
13 feets * 15 feets
To double the area of The patio :
2 * initial. Area
Initial Area = area of rectangle = Length * width
Initial area = 13 * 15 = 195ft²
New area of patio = 2 * 195 ft² = 390 ft²
To obtain the new area, the length and width of patio increased in equal amount:
Let the Increment = x
Hence,
(length + x) * (width + x) = 390
(13 + x) * (15 + x) = 390
195 + 13x + 15x + x² = 390
195 + 13x + 15x + x² - 390 = 0
x² + 28x - 195 = 0
Using the quadratic equation solver to save computation time :
The roots are :
X = - 33.773 or 5.773
Dimension can't be negative, hence,
x = 5.773
New dimension :
(length + x) = 13 + 5.773 = 18.8 ft
(width + x) = 15 + 5.773 = 20.8 ft
"Mr. Mollica's bank automatically deducts a $4 monthly maintenance fee from his savings account. Write a multiplication expression to represent the maintenance fees for one year. Then find the product"
-I don't understand this math problem
9514 1404 393
Answer:
$4(12)
$48
Step-by-step explanation:
The problem is telling you fees are $4 per month. It is asking the amount of fees for a year.
You find the yearly amount by multiplying the monthly amount by the number of months in a year:
(fees for year) = (fee for month)×(number of months in a year)
All it is asking for is the product expression:
$4 × 12
__
And for the product:
$48
Is the following Proportional or Non-Proportional? Alejandra runs a
present wrapping booth at the mall. She charges $5 for every present that
she wraps
Answer:
nntjntbntntbt
Step-by-step explanation:
Stuart Rosenblatt earned a gross salary of $800 in one week. He received a paycheck that showed that taxes and other deductions of $206.75 were subtracted from his gross salary.
What was the net amount of Stuart’s paycheck
Which expression is modeled by this arrangement of tiles?
16 negative tiles are split into 2 groups of 8 negative tiles.
Answer:
16 negative tiles are split into 2 groups of 8 negative tiles.
Negative 16 divided by 3
Negative 16 divided by 2
Negative 8 divided by 8
Negative 8 divided by 2
Step-by-step explanation:
how how many pounds are in 6 kilograms ? 1kg=2.2lbs
Answer:
2.2 * 6 = 13.2 lbs
Write a multiplication equation that represents the question: how many 38s are in 54? DO NOT tell me the answer just show me how you worked it out using MULTIPLICATION. Thanks.
Answer:
[tex]38 x = 54[/tex]
Step-by-step explanation:
Required
Determine the number of 38 in 54
We start by representing the number of 38 in 54 with x
To determine the number of 38 in 54, we have to represented it as thus:
[tex]38 * x = 54[/tex]
Simplify the expression as follows:
[tex]38 x = 54[/tex]
The expression can be left like that or simplified further by dividing through by 2:
[tex]19x = 27[/tex]
Hence, the solution to the question is:
[tex]19x = 27[/tex] or [tex]38 x = 54[/tex]
please help me out with this
Answer:
y = -3x - 2
Step-by-step explanation:
Equation of a line passing through [tex](x_1,y_1)[/tex] and slope m is,
[tex]y-y_1=m(x-x_1)[/tex]
Slope of a line passing through [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is,
Slope = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Slope of the line passing through (0, -2) and (1, -5) will be,
Slope = [tex]\frac{-2+5}{0-1}[/tex]
m = - 3
Therefore, equation of the line passing through (0, -2) and slope = -3 will be,
y + 2 = -3(x - 0)
y + 2 = -3x
y = -3x - 2
The length a rectangular pan is represented by 5a2 and the area of the rectangular pan is represented by 5a4 + 10a3 - 15a2, find the polynomial expression that represents the width of the pan. Write your answer in descending order. Please use the palette below to enter your answer
Answer:
[tex]Width = a^2 + 2a - 3[/tex]
Step-by-step explanation:
Given
[tex]Area = 5a^4 + 10a^3 - 15a^2[/tex]
[tex]Length = 5a^2[/tex]
Required
Determine the Width
The area of a rectangle is calculated using:
[tex]Area= Length * Width[/tex]
Make Width the subject
[tex]Width = \frac{Area}{Length}[/tex]
Substitute values for Area and Length
[tex]Width = \frac{5a^4 + 10a^3 - 15a^2}{5a^2}[/tex]
Factorize the numerator
[tex]Width = \frac{5a^2(a^2 + 2a - 3)}{5a^2}[/tex]
[tex]Width = a^2 + 2a - 3[/tex]
Hence, the polynomial for the width of the rectangle is:
[tex]Width = a^2 + 2a - 3[/tex]
Students make 97.5 ounces of liquid soap for a craft fair. They put the soap in7.5 -ounce bottles and sell each bottle for $4.50. How much do the students earn if they sell all the bottles of liquid soap? Explain.
Answer:
$58.5Step-by-step explanation:
Step one:
given data
the total amount of ounces= 97.5 ounces
we are told that the capacity of one bottle is 7.5 ounce
this means that they can actually fill up 97.5/7.5= 13 bottles
Step two:
We are told that one bottle was sold for $4.5
Hence they will sell 13 bottles for 13*4.5= $58.5
The square of a number is equal to nine.
Answer:
[tex]\pm 3[/tex]
Step-by-step explanation:
Take the square root.
Answer:
81
9 x 9 = 81
Therefore the square of a number equal to 9 is 81
May I have brainliest please? :)
I have no clue what this means
Answer:
same. me too❤
Find the slope of the line through the points (−3, 1) and (−1, 5)
PLZZZ HELPPPP
Answer:
2
Step-by-step explanation:
We can find the slope using the formula
m = ( y2-y1)/(x2-x1)
= ( 5-1)/( -1 - -3)
= ( 5-1)/( -1+3)
= 4/2
= 2
Answer: 2
Step-by-step explanation:
( y2-y1)/(x2-x1)
= ( 5-1)/( -1 - -3) = ( 5-1)/( -1+3) = 4/2 = 2
help asap please !!!
Answer:
answer below
Step-by-step explanation
128-B
A new arcade opened up in town. A play package is available to purchase. It includes 15 tokens for games,plus 5 dollars off. Let x represent the cost per token
Answer:
The total cost of the games (play package)
= 15x - 5
Step-by-step explanation:
Number of tokens in the games = 15
The cost per token = x
Discount off the total cost = $5
Therefore, the cost of the play package = 15x - 5
where x is in dollars
However, ‘x’ can also assume any value.
Check:
If x = $15
The total cost of the game can be said to be 15(10) - 5 = $220
Please help ! I’ll give brainliest!
2.Which expression is equivalent to (2x6 + x3) - (x5 + 4x3)?
A. 2x6 + 7x3
B. 2x6 - X5 - 3x3
C. 3x6 - X5 - 3x3
D. 3x6 - X5 + 7x3
Answer:
Step-by-step explanation:
2x6 + x3 - x5 - 4x3
Solving like terms
2x6 - x5 - 3x3
Option B is the correct answer
Hey Siri Timothy nvested 12,000 in an account that pays 4% annual simplest interest .timothy will not make any additional deposits or withdrawals . How much interest will Timothy earn on his investment at the end of 4 years
Answer: Timothy will have $1,920 at the end of 4 years.
Step-by-step explanation: Remember, I=prt. So multiply 12,000x0.04x4. The final answer is $1,920.
Answer:
$1920
Step-by-step explanation:
He starts with 12,000 dollars. If he makes 4 percent of that, he is making 480 dollars every year. So you know how much he is making every year, you need to know what he is making in 4 years. 480 * 4 = 1920
HELP PLEASE ILL GIVE BRAINLIEST
Answer:
B. The answer is B
Step-by-step explanation:
He original price of a couch was $395.00. A store will markup the price of the couch by 25%. What is the exact price of the couch, not including tax, with this markup
Answer:
The exact price of the couch is $493.75
Step-by-step explanation:
Here, we want to find the price of the couch given the mark up percentage
Mathematically, that would be;
395 + (25% of 395)
= 395 + 25/100 * 395
= 395 + 395/4
= 395 + 98.75
= $493.75
Plz help me quickly I’ll give brain list !!!!!!!plz
Answer:
8 3/4 is your answer
Step-by-step explanation:
If you want to multiply in a simplier form convert into decimals
2.5*3.5= 8.75 = improper fraction form its 8*4+3=35/4= 8 3/4
pls give brainliest i need two more and i level up and hope this helps
Answer:
The answer is 8.75
Step-by-step explanation:
First make 2 1/2 and 3 1/2 to improper fraction.
5/2 * 7/2= 35/4
After you multiplied you make you answer into a mixed number fraction by
dividing the numerator and denominator. 35/4=8.75
Answer:8.75
Hope this helps!!