Question

The total distance in centimeters a toy robot moves varies directly with the time in seconds. The toy robot moves a total distance of 140 centimeters in 35 seconds. What is the time in seconds the toy robot moves when the total distance is 70 centimeters?

Answer 1

17.5 seconds

Explanation:

140 cm/35 sec (find unit rate)

4 cm/ 1 second

`(4)/(1) = (70)/(x)` (divide 70 by 4)

70/4=17.5

`(4)/(1) = (70)/(17.5)`