Once cubic centimeter = 1 milleter
1 mL = 1000 L
250,000 ÷ 1000 = 250
There are 250 liters in 250,000 cubic centimeters.
Well you do 57 time 7 and get 399 and then it says how far will she have driven so you would add the 60 and get 459 miles.
The proportion equal to a/b = c/d is A.) A/C = B/D
We will know if a proportion is equivalent when its cross products are equal.
a/b = c/d where ad = bc
since ad = bc, a/c = b/d
Hopes this helps:
Answer: x = -12
How I know I use this app called Cymath.
