Question

A car is traveling down a highway at a constant speed, described by the equation d = 65t,

where d represents the distance, in miles, that the car travels at this speed in thours.
How long does it take the car to travel 26 miles at this speed?

Answer 1

Answer: it takes the car 2/5 of an hour

Explanation:

since the equation would be set up as d=65t, when you plug in the 26 into d, then you will have 26=65t

since you have to isolate t, you need to do the opposite of multiplying, which is dividing

when you divide 65 on both sides of the equals sign (set up below,) the 65/65 will cancel out

26=65t

— —

65 65

then, you're left with 26/65=t

when you divide 26 by 65, you get .4, which is equivalent to 2/5 of an hour

in minutes, this is 24 minutes (you divide 60 minutes by 5, thats 12, then you multiply 12 by 2 to get 24)