Answer:
$42 - 19 = 23 - 15 = $8
Step-by-step explanation:
For this case we have the following solution.
x = gallons of water to be added
For the 10% solution we have:
0.1 * 8 = 0.8
Then, for 5% we have:
(0.8 / x + 8) = 0.05
Rewriting:
(0.8 / x + 8) = (5/100)
Answer:
An equation can be used to find x, the humber of gallons of water he should add is:
(0.8 / x + 8) = (5/100)
Answer:
Step-by-step explanation: The answer is D- Substitution Property of Equality. I just did the test and it was right.
Answer:
I think it's B
Step-by-step explanation:
-20-(-5)(-2^2)
-20-(-5)(-4)
-20-(20)
-20-20
-40
