C 2 (-20)
He withdrew (took out) money twice.
That's -20 two times.
Answer:
go to the skating rink
Step-by-step explanation:
if multiply 5x 7 you get 35
If you add 35+15 you get 50 which is the amount of money you have. So if you chose the bowling ally you could bring 7 friends
but is you multiply 3x10 that equals 30
Add that by 20 and you get 50
let me know if its right
Answer:
112.5 mL
Step-by-step explanation:
Let x represent the amount of grape juice to add. Then the total amount of grape juice in the mix is ...
0.15(1800) +x = 0.20(1800+x)
270 +x = 360 + 0.2x . . . . . . eliminate parentheses
0.8x = 90 . . . . . . . . . . . . . . . subtract 270+0.2x
x = 90/0.8 = 112.5 . . . . . . . . divide by the coefficient of x
112 mL of grape juice should be added to make a mix that is 20% grape juice.
