A tire rim has a diameter of 15 in. What is the circumference of the tire rim? Use 3.14 for
O 23.55 in.
46. 10 in.
O 47.1 in.
942 in.

47.1 inches

Step-by-step explanation:

The formula for finding circumference is C = D x pi

So, we go 15 x 3.14, and we get 47.1 inches

-1/2 +2

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.