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andrew11 [14]
3 years ago
13

What is the ratio for erasers to pencils?

Mathematics
1 answer:
poizon [28]3 years ago
7 0
4:3 it four to three
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What is the volume of this cylinder? (Round to the nearest inch ) 7( radius)
Agata [3.3K]

Answer:

The formula for the volume of a cylinder is:

V= pi * radius^2 * height

When the values are plugged in, you would have:

V= pi * 7^2 * 14

Then simplified....

V= pi * 49 * 14

V= pi * 686

V= 2155.13256036

and when rounded to the nearest inch...

the volume would be approximately 2155 inches.

4 0
3 years ago
How long will it take Greg to earn $500.00 round to the nearest hour
Mrrafil [7]

Answer:

56 hours

Step-by-step explanation:

we know that  

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

Let

x -----> the number of hours

y ----> the amount earned in dollars

This problem represent a proportional relationship between the variable x and the variable y

Find the value of the constant of proportionality k

k=y/x

For (3,27) ----> k=27/3=9\ \$/h

For (9,81) ----> k=81/9=9\ \$/h

For (21,189) ----> k=189/21=9\ \$/h

The constant of proportionality k is 9

The linear equation is

y=9x

For y=$500

substitute in the equation and solve for x

500=9x

Divide by 9 both sides

x=56\ hours

5 0
3 years ago
Can someone help answering my questions in English and Math
vagabundo [1.1K]

Answer:

yo

Step-by-step explanation:

8 0
2 years ago
What is the sum of the arithmetic series below?
Irina-Kira [14]
Hello : 
the common ratio is r = -95-(-100)=5
the general terme is : un= u1+(n-1)r
un = -100 +(n-1)(5)
un =-100 +5n-5
un = 5n-105
The last term is : 100
un =100
5n-105 = 100
5n =205
n = 41 (Number of terms)
The last term is : u 41
<span>the sum is : S= (41/2)(-100+100)=0</span>
5 0
3 years ago
Ice cream store marks up price by 16% how much of original price was 1.25
kirill115 [55]

Answer:

0.128

Step-by-step explanation:

7 0
3 years ago
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