Question 939132: 3adults 1 child go cinema =£30 1adult 4childs go and it = £22 how much is an adult ticket and a child ticket Answer by Stitch(470) (Show Source):
You can put this solution on YOUR website! I am not sure that you copied the numbers in the problem over correctly because the answer comes out to odd prices but these are the steps that I used.
Let A = price of an adult.
Let C = price of a child.
Equation 1:
Equation 2:
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Lets start by solving equation 1 for one of the variables. I picked C.
Equation 1:
Now plug (30-3A) into equation 2 for C
Equation 2:
Multiply the 4 through.
Combine like terms.
Subtract 120 from both sides.
Divide both sides by -11.
Notice that the negative signs cancel each other out. (Note that I rounded this number)}}}
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Using A = 8.91, solve for C
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