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ollegr [7]
3 years ago
11

Jose and Jill are selling pies for a school fundraiser. Customers can buy cherry pies and lemon meringue pies. Jose sold 17 cher

ry pies and 14 lemon meringue for a total of $321. Jill sold 9 cherry pies and 5 lemon meringue pies for a total of $141. Find the cost of one cherry pie and one lemon meringue pie.
Mathematics
1 answer:
RSB [31]3 years ago
7 0

Cost of one cherry pie is $ 9 and cost of one lemon meringue is $ 12

<h3><u>Solution:</u></h3>

Let "c" be the cost of one cherry pie

Let "m" be the cost of one lemon meringue

<em><u>Given that Jose sold 17 cherry pies and 14 lemon meringue for a total of $321</u></em>

We can frame a equation as:

17 cherry pies x cost of one cherry pie + 14 lemon meringue x cost of one lemon meringue = $ 321

17 \times c + 14 \times m= 321

17c + 14m = 321 ------- eqn 1

<em><u>Jill sold 9 cherry pies and 5 lemon meringue pies for a total of $141</u></em>

9 cherry pies x cost of one cherry pie + 5 lemon meringue x  cost of one lemon meringue = $ 141

9 \times c + 5 \times m = 141

9c + 5m = 141  -------- eqn 2

<u><em>Let us solve eqn 1 and eqn 2 to find values of "c" and "m"</em></u>

Multiply eqn 1 by 5

85c + 70m = 1605 ----- eqn 3

Multiply eqn 2 by 14

126c + 70m = 1974  ------- eqn 4

Subtract eqn 3 from eqn 4

126c + 70m = 1974

85c + 70m = 1605

(-) -------------------

41c = 369

<h3>c = 9</h3>

Substitute c = 9 in eqn 1

17c + 14m = 321

17(9) + 14m = 321

14m = 369 - 153

14m = 168

<h3>m = 12</h3>

Thus the cost of one cherry pie is $ 9 and cost of one lemon meringue is $ 12

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