Answer:
C.
Explanation:
I had the quiz as well :)
Answer:
Step-by-step explanation:
Step 1: Factor out the common term 
Step 2: Add the whole numbers
Step 3: Combine the fractions:
Step 4: Convert the improper fractions to mixed numbers
Step 5: Add the numbers
Therefore, the answer to the equation is in fraction, and decimal; 
Set up a system of equations.
X+y=6
Y-x =40
Substitution method.
Y=6-x
(6-x)-x =40
6-2x=40
-2x=34
X= -17
Plug it back into the equation.
-17+y=6
Y=33
(-17,33) is one of the possible answers.
Answer:
180 CDs
Step-by-step explanation:
So if Sam has 84 CDs, and the ratio from Sam to Alice is 7:8, we can do 84/7=12 so each number is equal to 12. Then we add up 7 and 8 and get 15, so we do 15*12 and we get 180.
