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Novosadov [1.4K]
2 years ago
13

You buy magazines for $5 and books for $10. You spent a total of $100. Let x represent the number of magazines and y represent t

he number of erasers. Write an equation to represent the situation.

Mathematics
1 answer:
bagirrra123 [75]2 years ago
8 0
The answer would be 10x+5y=100
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C= the price of a cheeseburger and l = the price of a lemonade:

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Divide the second equation by -2 to begin the process of solving by elimination:

3c + 2l=14\\-1/2\ (2c+4l=12)\\\\3c+2l=14\\-c-2l=-6\\\\2c=8\\c=4

Now that we have c, 4, we can plug it in to one of the equations to find l:

3c + 2l=14\\3(4)+2l=14\\12+2l=14\\2l=2\\l=1

So, each cheeseburger is $4 and each lemonade is $1.  The final answer is:

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