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If you would like, thank you!

If you would like, thank you!-example-1
User Ligwin
by
8.1k points

1 Answer

6 votes

1: a. 5 hours

b. 50 mph

2: Expressions have solutions and equations don't

Question 1:

a.

If r is the miles per hour, that means that

r

would be 80.

Plug 80 into your equation and solve for

T

.

T

=400/80

T

=5

And there you go! It will take

5 hours

to travel 400 miles going 80 mph.

b. Same thing as before but instead replace the

T

with 8 and leave the

r

alone.

8=400/

r

Rearrange and get 400/8=

r

50=

r

So, if it takes you 8 hours to travel 400 miles, you were going an average of

50 mph

.

Question 2:

"Expressions have solutions and equations don't" is

false

.

Thank you for letting me help you! I'ma get off now.

User Tomanizer
by
8.1k points

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