Question

Andre's coin jar contains 85 cents. There are no quarters or pennies in the jar, so the jar has all nickels, all dimes, or some of each.

Let x' be the number of nickels and y be the number of dimes.
Which of the following equations represents this situation?
O x+y=85
Oy+x=85
0 5x+10y = 85
10x + 5y = 85

Answer 1

C, 5x + 10y = 85

Explanation:

There are 5 cents in a nickel, so that will be 5x because x will be the number of nickels as said earlier and 5 will be the nickel.

There is 10 cents in a dime, so that will be 10y because y will be the number of dimes used as mentioned, and 10 will be the dime.

Both of those added, (5x + 10) will have a result of 85.

That's why 5x + 10y = 85 would best be the appropriate equation to use here.