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3 years ago

Y= -8 y= -2x - 12 by substitution method

Mathematics

1 answer:

Alex787 [66]3 years ago

3 0

The answer is x=2;

y=-8
y=-2x-12

-8=-2x-12
-8+12=2x-12+12
4=2x
4÷2=2x÷2
2=x

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3 years ago

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jolli1 [7]

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2 years ago

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icang [17]

9514 1404 393

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$9
Option 4

Step-by-step explanation:

The equations need to match the problem statements. If we let C and S represent the costs of Cherry and Sweet potato pies, respectively, then the revenue from each sale can be expressed as an equation.

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14 sweet potato and 11 cherry for $309 ⇒ 11C +14S = 309

Note that we have used C and S in the second equation in the same order as they appeared in the first equation, even though the problem statement has that order reversed. This facilitates solving the equations using elimination or Cramer's rule.

These equations match Option 4.

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3 years ago

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djverab [1.8K]

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3 years ago