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Troyanec [42]
3 years ago
11

A gym charges a one-time registration fee as well as a monthly fee. The cost of joining the gym for 4 months is $370, and the co

st of joining for 6 months is$530. Write and solve a system of equations to find the registration fee and monthly fee.
Mathematics
1 answer:
Anna007 [38]3 years ago
8 0
x-\ registration\ fee\\
y-\ monthly\ fee\\\\
 \left \{ {{x+4y=370} \atop {x+6y=530\ \ |*(-1)}} \right. \\\\
 \left \{ {{x+4y=370} \atop {-x-6y=-530}} \right. \\+-----\\Addition\\\\
-2y=-160\ \ | divide\ by\ -2\\
y=80\\\\
x=370-4y=370-4*80=370-320=50\\\\
Registration\ fee\ is\ equal\ to\ 50\$\ and\ monthly\ fee\ is\ equal\ to\ 80\$.

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