SOLUTION: The cost for 2 adults and 5 children to eat is $45.50. 1 adult and 1 child is $15. How much os a childs meal?

Question 1061900: The cost for 2 adults and 5 children to eat is $45.50. 1 adult and 1 child is $15. How much os a childs meal?
Found 2 solutions by jorel555, josmiceli:
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
Let a be adult, and c be a child. Then:
a+c=15
2a+5c=45.5 So:
2a+2c=30
3c=15.5
c=$5.167 as the cost of a child's meal. ☺☺☺☺
a=$9.833
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the cost of an adult's meal
Let = the cost of a child's meal
------------------------------------
(1) ( in cents )
(2) ( in cents )
------------------------------------
Multiply both sides of (2) by
and subtract (2) from (1)
(1)
(2)
-------------------------

cents
dollars
and
(2)
(2)
(2) cents
(2)
----------------------------
A child's meal is $5.17
----------------------------
check:
(1) ( in dollars )
(1)
(1)
error due to rounding off, I think
Check my math and maybe get another opinion, too

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