Question

One car travels north at a constant rate of 59 mi/hr. A second car starts at the same time at the same point and travels south at a constant rate of 66 mi/hr. How many hours will it be before they are 625 mi. apart.

Solve the problem by making a table

Answer 1

let's do a quick sketch of the situation first. we have two cars (I'll just call them A and B, where A is the one that's going north, and B is the one that's going south)

Answer 2

you may have noticed a pattern already: every hour, the cars get 125 miles further apart.

so here comes the table: we can put hours in one column, and miles apart in a 2nd column. for the first row, we start with 0 hours, 0 miles apart. every row, we add 1 hour and 125 miles.



since it's asking how many hours it will take for the cars to be 625 miles apart, simply keep the table going until you reach 625 miles, then see what hour is on the first column.

Answer 3

5th hour

Answer 4

yup that's what I got too, well done ~