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Georgia [21]
3 years ago
5

Plzzzz help don’t understand

Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
8 0

5s + 5l = 155, 10s + 12l = 346

Solve for s in the first equation.

5s = 155 - 5l

s = 31 - l

Substitute s into the second equation.

10(31 - l) + 12l = 346

310 - 10l + 12l = 346

310 + 2l = 346

2l = 36

l = 18

Substitute l into the first equation.

5s + 5(18) = 155

5s + 90 = 155

5s = 65

s = 13

s = 13, l = 18

dlinn [17]3 years ago
3 0

The Small Box of Juice is worth $13 while the Large box is worth $18 dollars.

It takes a while, but the way you can find out is through trail and error.

To start, get any two numbers over 10 but make sure that they aren't the same exact number. Multiply them both by 5 and then add. If the answer isn't 155, keep trying until you get it.

Be careful though, and make sure to check the answers you got by trying to multiply those with the second set of prices that are there and then adding. If the answer wasn't 346, you would go back to find a number pair that worked with both situations correctly.

Hope you find this helpful.

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