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1 vote
Jack rides his bike 4 miles in 1/3 of an hour. What is jack unit rate in miles per hour?

2 Answers

3 votes

Answer:

12 miles

Explanation:

1/3 of an hour = 20 minutes = 4 miles

1 minute = 4/20 miles

60 minutes = 4/20 x 60 miles

= 4 x 3 miles

= 12 miles

60 minutes = 1 hour

=> 1 hour = 12 miles

Jacks unit rate is 12 miles/hr

User Jawad Ahbab
by
8.5k points
1 vote

Answer:

12

Explanation:

There are two ways of doing this problem. I think the easiest way is to use a decimal in the denominator and round

4/0.333333333 = 12.000000001

The answer is obviously meant to be 12.

The other way is more sophisticated, but more accurate.

4/1 // 1/3 This is a 4 tier fraction. The rule is to invert the denominator (turn the bottom fraction upside down) and multiply.

4/1 * 3/1 = 12

The first method is easier to understand. The second is more accurate and more useful for physics.

User BeMy Friend
by
7.4k points

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