Kirsten has 3/4 hour left to finish 5 math problems on the test. How much time does she have to spend on each problem?
3/4 / 5
multiply top and bottom by 4
(4 * 3/4) / 20
= 3/20
To find out how much time Kirsten has to spend on each problem, we need to divide the amount of time she has left (3/4 hour) by the number of problems she needs to finish (5).
3/4 hour ÷ 5 = (3/4) ÷ 5
To divide fractions, we multiply the first fraction by the reciprocal of the second fraction.
(3/4) ÷ 5 = (3/4) × (1/5)
Multiplying the numerators gives us:
3 × 1 = 3
And multiplying the denominators gives us:
4 × 5 = 20
Therefore, Kirsten has to spend 3/20 (or 0.15) of an hour on each problem.
To find out how much time Kirsten has to spend on each problem, we need to divide the total time available by the number of problems.
Kirsten has 3/4 hour (or 0.75 hours) left to finish 5 math problems on the test.
To find how much time Kirsten has to spend on each problem, we'll divide the total time available (0.75 hours) by the number of problems (5).
0.75 hours ÷ 5 = 0.15 hours
Therefore, Kirsten has 0.15 hours to spend on each math problem.