Answer:
I think it is 336 ways the medals can be given out.
Step-by-step explanation:
.05c+.3s=10.25, c+s=100, c=100-s (c is for cards that don't sing and s is for those that do :P)
.05c+.3s=10.25 and c=100-s makes the equation become:
.05(100-s)+.3s=10.25
5-.05s+.3s=10.25
.25s=5.25
s=21, and since c=100-s
c=79
So she bought 21 of the more expensive singing cards...
Answer:
69%
Step-by-step explanation:
Answer: 3sqrt6
Step-by-step explanation:
2/5 divided by 4/7 is equal too 7/10
