N+d=47
5n+10d=295
divide 2nd by 5
n+2d=59
we have
n+d=47
n+2d=59
eliminate n
multiply first equaton by -1 and add to other equaton
-n-d=-47
<u>n+2d=59 +</u>
0n+1d=12
d=12
sub back
n+d=47
n+12=47
minus 12 both sides
n=35
35 nickles
D is answer
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Step-by-step explanation:
15 = 3/5 x = 3x/5
75 = 3x
x = 25 ounces
Take your original equation and replace the variables with their corresponding variables. As a result, you get the equation
F=9(-6)+2(7)
F=-54+14
F= 40
