X = Dimes Y = Nickels
x + y = 175
.10x + .05y = 13.30
Answer:
sorry I'm confused boy sorryy
Answer:
- <u>It is a combination</u>
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Explanation:
This is a combination because the order does not matter: the Beagle - Collie couple is the same as the Collie - Beagle couple, so it is only counted once.
The formula for combinations is:

For five diffferent dogs to be put in pairs, the number of different pairs is:

.75x+4=.75
hope this helps!