Answer:
2 quarts of 100% antifreeze.
Step-by-step explanation:
5 quarts/ .40 * x/ 1
.40x= 5
x=2
The solution to the equation would be 21.5
Why?
If you do the equation backwards
30 - 8.5 = x
You would get 21.5
You can plug it into the first equation to check!
:)
Answer:

Step-by-step explanation:
( x + 3 )( x - 8 ) =
- 8x + 3x - 24 =
- 5x -24
Answer:
The first one
Step-by-step explanation: