Question

Gina has $15$ dollars more than twice as much money as her sister Maria. If Gina gives Maria $30$ dollars, then Gina will have half as much money as her sister. How many dollars does Gina have?

Will give brain;ist

Answer 1

55$

Explanation:

The two main equations are:

G=15+2M

G-30=1/2(M+30)

15+2M-30=1/2(M+30)

2M-15=1/2(M+30)

4M-30=M+30

3M=60

M=20

Now, if you put 20 as M, this is what you get:

G=15+2*20

G=$55

M=$20

FiFi