Question

Mary jogged from Point P to Point Q while Wyatt jogged from Point Q to Point P.

Answer 1

Answer:

When did Mary and Wyatt meet? 0.5 minutes later

How far from point Q did they meet? 3.5 km

Step-by-step explanation:

Mary’s motion is represented by d = 8t----(1)

Wyatt’s motion is represented by 2d + 14t = 15----(2)

We solve for d in equation (2) to get:d=7.5-7t----(3)

We equate equation (1) and (3) to get:

$8t=7.5-7t$

We now solve for t to get:

$8t+7t=7.5$$15t=7.5$

$t=\frac{7.5}{15}=0.5$

Now put t=0.5 into equation (1) to get d=0.5*8=4

This means they met 4 km from point P.

Therefore they meet 7.5-4=3.5km from point Q