Math
posted by Help please on .
Brian gave 20% of his baseball cards to Scott and 15% to Adam. If he still had 520 cards, how many did he have originally?

20% + 15% = 35% given away.
That leaves 65%, so
.65x = 520
Now just solve for x.
posted by Help please on .
Brian gave 20% of his baseball cards to Scott and 15% to Adam. If he still had 520 cards, how many did he have originally?
20% + 15% = 35% given away.
That leaves 65%, so
.65x = 520
Now just solve for x.