We could say that dimes = x and quarters = 60 -x
Then we use the value of the coins
10(x) + 25(60-x) = 945
I did 945 because I am doing this in cents not dollars but the answer would still work because it is asking for the amount of coins.
10x + 1500 - 25x = 945
-15x = -555
x = 37
Dimes = x = 37
Quarters = 60 - x = 60 -37 = 23
7 and 6 have the number 42 in common so 42 can be used as the denominator
Second answe is the correct answer
The answer you are looking for is 8.3%.
To find this, you must find out how many students did not choose to voice their opinions. Simply add 17 and 5 to get 22, and subtract 22 from 24. This will give you 2 students who didn't voice their opinions. Then, divide 2 by 24. In doing so, you'll get 0.083333... which you multiply by 100 to get a percent. You'll be left with 8.3333... which rounded to the nearest tenth, is 8.3%.
I hope this helps!
