Answer:
42
Step-by-step explanation:
because it took 7 tubes of red for one painting and when she does 6 you would multiply 6x7 and it would equal 42.
Answer:
a = 3
Step-by-step explanation:
1) Simplify 5a - 9 + a to 6a - 9.

2) Add 9 to both sides.

3) Simplify 9 + 9 to 18.

4) Divide both sides by 6.

5) Simplify 18/6 to 3.

Therefor, the answer is, a = 3.
Answer:
3/2(x+y)
Step-by-step explanation:
The cost of 2 DVD is x+y
Divide by 2 to get the cost of one DVD
(x+y) /2
Multiply by 3 to get the cost of 3
3/2(x+y)
The final answer would be 39/19 it doesn't simplify any more and if it did the 19 would be reduced as well as the 39
There are 5 dimes and 13 nickels