Answer:b
Step-by-step explanation:I did it on my quiz
Answer:
a/ (5r^2) = t
Step-by-step explanation:
a= 5r^2 t
Divide each side by 5r^2
a/ 5r^2 = 5r^2 t/5r^2 t
a/ 5r^2 = t
You're going to use cross multiplication.
1 gal x 21 miles = 25miles x x
21 miles = 25x
Divide each side by 25 to get x alone
21/25 = 0.84, which is your x value.
The solution is (8,-12) if it was solved by elimination