Answer:
2.29 inches/hour
Step-by-step explanation:
Given that the candle burns at a constant rate.
After time 2.7 hours, candle was 14.3 inches tall.
After time 7.1 hours, candle was 4.2 inches tall.
To find:
The constant rate at which the candle burn.
Solution:
Let the length be represented by [tex]l[/tex] and time be represented by [tex]t[/tex].
Let the constant rate be [tex]m[/tex].
and the initial length be [tex]L.[/tex]
The equation can be written as:
[tex]l =mt+L[/tex]
At [tex]t[/tex] = 2.7 hours , [tex]l[/tex] = 14.3 inches
[tex]14.3 =2.7m+L ..... (1)[/tex]
At [tex]t[/tex] = 7.1 hours , [tex]l[/tex] = 4.2 inches
[tex]4.2 =7.1m+L ..... (2)[/tex]
Equation (1) minus (2):
[tex]10.1=-4.4m\\\Rightarrow m = - 2.29\ inches/hour[/tex]
The candle burns at the rate of 2.29 inches/hour.
A circle is divided into 6 equal-sized sections. The sections are rearranged to form a shape that approximates a parallelogram, as shown. height (n) base (6) Which of the following can the expression bh be used to approximate? A the area of the circle ® the circumference of the circle © the area of one section of the circle o the perimeter of one section of the circle
Answer:
I think its the perimeter of one section of the circle.
Step-by-step explanation: since the circle is divided you should calculate the area of one section of the perimeter
hope this helps
Answer (D.)
Step-by-step explanation:
what is the answer to this solve 3x-7=32
Answer:
Step-by-step explanation:
How to solve your question
Your question is
3
−
7
=
3
2
3x-7=32
3x−7=32
Solve
1
Add
7
7
7
to both sides of the equation
3
−
7
=
3
2
3x-7=32
3x−7=32
3
−
7
+
7
=
3
2
+
7
3x-7+{\color{#c92786}{7}}=32+{\color{#c92786}{7}}
3x−7+7=32+7
2
Simplify
3
Divide both sides of the equation by the same term
4
Simplify
Solution
=
1
3
Parker's family took a road trip to Niagrara Falls. Parker fell asleep after they had travelled 198 miles. If the total length of the trip was 440 miles, what percentage of the total trip had they travelled when Parker fell asleep?
Answer:
242
Step-by-step explanation:
because i need trust in my life
Answer:
45%
Step-by-step explanation:
this time trust me everyone here
.
The sale price of a necklace was $77. It had been marked down 30 percent for the sale. What was the original price of the necklace?
Answer:
List Price = $ 110.00
Discount Amount = $ 33.00
Need answers ASAP!!
I have 3 hours
Answer:
lolololol
Step-by-step explanation:
idek
Lisa loaned John $5000 at an interest rate of 6%. He repaid her $5750 to cover the principal and interest. How long did he borrow the money?
Answer:
time in years = 2.5 years
Step-by-step explanation:
time = interest / (principal amount x rate)
time = 750 / 5000 x 0.06
time = 750 / 300
time = 2.5 years
Which division problem would have an estimated quotient of 15 if the divisor and dividend were rounded to the nearest whole number? What is the right option?
Answer:
90.24 divided by 6.3
Step-by-step explanation:
For reaching to the answer, we have to test each of the options given
The first option says that the divisor and dividend is 90.24 and dividend is 6.3
Now if we rounded it
So it would be 90 and 6
So, the quotient is
= 90 ÷ 6
= 15
Hence, the first option is correct
i.e. 90.24 divided by 6.3
And, all the other options are wrong
The density of gold is 19.3 g/cm3. A weight of 1 ounce is equivalent to a mass of about 28.35 g. Which of these is closest to the side length of a cube-shaped block of gold that has a weight of 8 ounces?
Answer: 10000099
Step-by-step explanation: bc i need points
Can someone please help
Smamsnsnjaka
Answer:
2.25 is thhe slope
Step-by-step explanation:
Jack works at a sporting goods store and makes a commission of 20 percent. His sales for each week are shown below. How much did Jack make in total in commission during all four weeks?
Week
Sales
1
$3,000
2
$2,500
3
$3,500
4
$4,000
$200.00
$260.00
$2,000.00
$2,600.00
Answer:
The answer is D
Step-by-step explanation:
Answer:
D.) $2,600.00
Step-by-step explanation:
Write a quadratic function whose graph has the given characteristics.
x-intercepts: (4, –1)
point: (1, –2)
Answer:
here you go
Step-by-step explanation:
how many whole numbers are there from 24 to 721
Answer:
697
Step-by-step explanation:
Answer:
698
Step-by-step explanation:
(721-24)+1= 698
the slope of (2,11) and (10,4)
Answer:
-7/8
Step-by-step explanation:
the formula for calculating slope for the given coordinates is:
(y2-y1)/(x2-x1)
so (2,11) = (x1,y1)
and (10,4) = (x2,y2)
then putting the values in the formula.
Is this table linear?
Answer:
Yes I guess .............
9. Identify the marked measurement
Answer:
9. 3.4
10. 4.4
Step-by-step explanation:
You use a pair of shoes to measure a distance. The shoes are 10 3/4 inches long. The distance is equal to the length of 12 of the shoes. What is the distance?
Answer:
10 ft 9 in
Step-by-step explanation:
If you use a pair of shoes to measure a distance and the distance is equal to the length of 12 of the shoes, the distance is 129 inches.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.
It is given that, the shoes are 10 3/4 inches long. The distance is equal to the length of 12 shoes.
We can utilize multiplication for a number of common tasks, such as figuring out how much it will cost to buy several identical things, calculating sales tax, and figuring out area and other geometric measurements.
The total distance according to the given condition is,
= 12 × 10 3/4 inches
= 12 × 43/4
= 129 inches
Thus, if you use a pair of shoes to measure a distance and the distance is equal to the length of 12 of the shoes, the distance is 129 inches.
Learn more about the arithmetic operation here:
brainly.com/question/20595275
#SPJ2
Geometry (congruent triangles ) help please idk what to do
Answer:
H
PLEASE MARK BRAINLIEST
A square with a side of y is transformed into a rectangle by adding 10 to one side and then subtracting 10 from another. Express the new area as a polynomial
Answer: [tex]y^2-100.[/tex]
Step-by-step explanation:
if we have a square with sides 'y' units,
then, its breadth = length = y
If we add 10 to one side it will become (y+10) (longer one) and subtract 10 from another, then it will become (y-10) (shorter one).
Area of rectangle = breadth x length
So, area of rectangle [tex]= (y+10)(y-10)[/tex]
[tex]= y^2-10^2=y^2-100\ \ \ \ \ [(a-b)(a+b)=a^2-b^2][/tex]
Hence, the new area as a polynomial = [tex]y^2-100.[/tex]
Last year, there were 380 students at Woodland Middle School. This year, the student population will increase by 5%. What will be the school’s increased student population?
I NEED THE CORRECT ANSWER PLEASE 77 POINTS NO WEBSITES
Samantha buys $128 worth of goods at a 25% discount. If the sales tax rate is 6.4%, what is the total amount she will pay?
Answer: 102.144
Step-by-step explanation:
128 times 0.25 = 32
128 - 32 = 96
96 times 1.064 = 102.144
So, she will pay 102.144
How many 2 ¼ inch ribbons can you make from a piece of fabric that is 3 feet wide?
Answer:
0.75
Step-by-step explanation:
Ok so we all know that 1/4 is equal to 0.25 as 1/2 is equal to 0.50 and as 3/4 is equal to 0.75. So tell me. after converting the 1/4 to a decimal what do you get? .25 right or just to not confuse you 0.25, so then after converting it to a decimal bring down that whole number which is 2. Put the 2 in the place of that 0 and you get 2.25, after that divide 2.25 by 3. which would equal 0.75. try this and see if im right
You bought 6 flowers for your valentine and spent 44$. You bought a combination of carnations for 2$ each or roses for 10$ each. How many of each type of flower did you buy.
Answer:
4 roses & 2 carnations
Step-by-step explanation:
what is the measure of mid-segment DE?
a. 13
b. 6
c. 10
d. 18
Answer:
A.13
Step-by-step explanation:
We can tell that a measurement of the mid segment DE = 13 because of what the length of the line BC equals... The length of BC = 26 this means that the mid segment equals 13 because 26 divided by 2 equals 13... The mid segment we'll be half the half length of the other line given. Hope this helps!
1. The approximate diameter of five planets are listed in the
chart below.
Mars, Neptune, Earth, Saturn
Planet
Diameter
in kilometers!
Earth
11,800
1.2 x 104
Saturn
Mars, Saturn, Neptune, Earth
5.0 x 10°
Neptune
Mars
4,800
Mars, Earth, Neptune, Saturn
Mars, Earth, Saturn, Neptune
Which list shows the planets in order from the least diameter.
to the greatest diameter.
CLEAR ALL
Answer:
Mars, Earth, Neptune, Saturn
Step-by-step explanation:
Planets Mars, Neptune, Earth, Saturn
Diameter (km) 6770 49244 12742 116460
The least diameter is of mars, then is of the earth, then Neptune and the greatest in the list is of Saturn.
The list of least to greatest would be
Mars, Earth, Neptune, Saturn
The mars is farther to the sun as compared to the earth. As the planet moves away from the Sun it's orbit becomes bigger and bigger. Neptune is the eigth planet and saturn is the sixth planet.
Describe the error made in subtracting the two rational expressions shown
Answer:
The minus sign between the two fractions was not distributed correctly.
Step-by-step explanation:
The error made in this solution of rational fractions' subtraction is that the minus sign between the two terms will change the signs of numerator of second fraction so the numerator in the answer will be 3.
The correct solution is:
[tex]\frac{1}{x-2} - \frac{1}{x+1}\\=\frac{x+1}{(x-2)(x+1)} - \frac{x-2}{(x-2)(x+1)}\\=\frac{x+1-(x-2)}{(x+1)(x-2)}\\=\frac{x+1-x+2}{(x+1)(x-2)}\\=\frac{3}{(x+1)(x-2)}[/tex]
Hence,
The error was in the last step of subtraction.
Answer:
You must subtract all terms of the numerator being subtracted out, not just the first term.
The negative 2 should have been subtracted out to get a numerator of x+1 - x+2
The simplified numerator of the difference should be 3, not –1.
Step-by-step explanation:
got it right on edge 2020
A roadside vegetable stand sells pumpkins for $5 each and tomatoes for $3 each. The
total sales on a certain day was $98. If they sold 10 pumpkins, write and solve a linear
equation to find the number of tomatoes sold.
Answer:
Step-by-step explanation: I need help
Which expression is NOT equivalent to 12x + 18y?
A) 6 (2x) + 18y
B) 6 (2x + 3y)
C) 6x + 9y + 6x + 9y
D) 3 (4x + 18y)
Answer:
D
Step-by-step explanation:
3 (4x + 18y) means that 3 will multiply 4x and 18y factor which results to 12x + 54y
hence dissimilar to the original expression
The drop down options are explicit and recursive.
Answer:
Recursive
Explicit
Step-by-step explanation:
An arithmetic sequence an be represented by a recursive rule which gives the first term and defines the nth term by relating it to the previous term, or by an explicit rule which defines the nth term as a function of n.
The recursive rule is that we have the initial term. To find the subsequent term, we will take that previous term and add it to our common difference.
Hence, we are relating the previous terms to define the nth term.
For the explicit rule, we simply have a function of n. To find the nth term, we can substitute our desired term n for n and evaluate.
Emmett and Charlotte are both selling cookie dough for a fundraiser. Although Emmett has
already sold 2 tubs, Charlotte hasn't sold any yet. If Emmett starts selling 7 tubs per day and
Charlotte begins selling 9 tubs per day, they will eventually sell the same amount of cookie
dough. How many tubs will each sell? How many days will that take?
Answer:
Step-by-step explanation:
7x+2=9x
2=2x
x=1
1 day, they'll each sell 9 tubs
If a cyclist rides at a constant rate of 24 miles per hour, how long would it take the cyclist to ride 120 miles?
Answer:
it is 4.25
Step-by-step explanation:
divide 120 by 24 and you will get 4.25