Question

A boat traveled 15 miles in 2 hours.

At this rate, how many miles will the boat travel in ½ hour? Help please♡

Answer 1

Answer: 3.75 miles

Explanation:

15 divided by 4 = 3.75

2 hours can be brokens into 4 parts (30 minutes) that's why we divide 15 by 4 to find the answer.

Hope this helps!

Answer 2

In 1/2 hour the boat will go 3.5 miles

Explanation:

Comment

This is a question that uses a proportion. A proportion is 2 ratios that are equal. You must know 3 parts of the proportion to be able to solve for the 4th. Fortunately, you do.

Givens

d1 = 15 miles

t1 = 2 hours

d2 = x

t2 = 1/2 = 0.5

Equation

d1/t1 = d2/t2

Solution

d1/t1 =d2 / t2 Substitute the givens into the equation

15 / 2 = d2/ 0.5 Cross multiply

2*d2 = 15*0.5

2*d2 = 7.5 Divide by 2

2*d2/2 = 7.5/2

d2 = 3.75