Question

select the correct answer.

at trents garage, 3 cases of brake fluid last 4 weeks. trent has 5 cases. how much more brake fluid should trent order so that he has enough for 13 weeks? round your answer up to the nearest whole number.

a. 4 cases

b. 10 cases

c. 9 cases

d. 5 cases

Explanation:

Step1: Find weekly usage rate

$\text{Weekly usage} = \frac{3}{4} = 0.75$ cases/week

Step2: Calculate total needed for 13 weeks

$\text{Total needed} = 0.75 \times 13 = 9.75$ cases

Step3: Round up to whole number

$\text{Rounded total} = 10$ cases

Step4: Find amount to order

$\text{Amount to order} = 10 - 5 = 5$ cases

Answer:

D. 5 cases