Question

Julia got a delivery order. She took some time to get ready, and then she rode her bicycle at a constant speed. The table compares the distance julia made (in kilometers) and the time since she got the order (in minutes).

Answer 1

Based on the information that was given in the table, the time taken for 1 kilometer will be 16 minutes.

How to solve an equation

From the question, the time taken for 5 kilometers is 40 minutes while the time taken for 7 minutes is 52 minutes.

This can be solved using arithmetic progression. This will be:

a + 4d = 40

a + 6d = 52

Subtract the equations

2d = 12

d = 12/2

d = 6

Therefore, a which is the first kilometer will be:

a + 4d = 40

a + 4(6) = 40

a + 24 = 40

a = 40 - 24

a = 16

Therefore, the time taken for 1 kilometer is 16 minutes.

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