Last week Jovanna ran 30 miles more than Rachel. Jovanna ran 47 miles. How many miles did
Rachel run?
A. 30 + x = 47

B. 30 - x = 47

C. 47 + x = 30

D. 47x = 30

A

Step-by-step explanation:

if rachel is 'x' and jovanna ran 30 more miles than her, then jovanna ran 30+x miles

we know that jovanna ran 47 miles so we set both values equal to each other

30 + x = 47

which is option A :))

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.