92.5k views
4 votes
If a car travels at a speed of 45 mi/h fort hours, then travels 65 mi/h for m hours, what does theexpression 45t +65m represent?The expression represents the (select)

If a car travels at a speed of 45 mi/h fort hours, then travels 65 mi/h for m hours-example-1

1 Answer

4 votes

total distance travelled by the car (option D)

Step-by-step explanation:

When speed = 45mi/h

time = t hours

when speed = 65mi/h

time = m hours

45t +65m means 45mi/h × t + 65mi/h × m

The formula that relates the speed and the time is distance:

speed = distance/time

distance = speed × time

The distance for the first speed and time = 45mi/h × t hours = 45t

The distance for the second speed and time = 65mi/h × m hours = 65m

The sum of the two distance = distance covered by the car = 45t + 65m

Hence, we can say the expression 45t +65m represents the total distance travelled by the car (option D)

User Mibac
by
7.7k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories