A wheel has a diameter of 21 inches. About how far does it travel if it makes 30 complete revolutions? Use 22/7 for pi

1 answer:

5 0

Circumference is the distance around the outside
therefor the circumference is the distance it travels in 1 revelotion

C=πd
d=21

c=21pi
use 22/7 for pio
c=21(22/7)
C=462/7
c=66
that's one revolution
times 30

66*30=1980in or about 165ft

You might be interested in

3+×/2=10 <br> Is ×/2=7<br> And does ×=14

adoni [48]

$3+\dfrac{x}{2}=10\qquad|\text{subtract 3 from both sides}\\\\\dfrac{x}{2}=7\qquad|\text{multiply both sides by 2}\\\\\boxed{x=14}$

7 0

3 years ago

Write the standard form of the equation of each line given the slope and y- intercept

SOVA2 [1]

Standard form is y=mx+b

y=9x+4

7 0

2 years ago

Help?

vodomira [7]

M = ounces of M&M
r = ounces of raisins

calories = 139m + 85r

calories < 600

139m+85r<600

3 0

3 years ago

What is 67% of 12? I NEED AN ANSWER QUICK.

professor190 [17]

The correct answer is C. you can get this by multilingual 67x0.12

4 0

3 years ago

35 is equal to 70% of a number n . Write and solve an equation to find n . Write the percent as a decimal.

kow [346]

35=.7 x n
35/.7 = 50
n=50

3 0

3 years ago