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Firdavs [7]
3 years ago
14

Solve each substitution ( I need help )

Mathematics
1 answer:
lozanna [386]3 years ago
5 0
In each of the problems, one of the equations is solved for y. Just plug in what y is equal to into the other equation.

1.) Plug -3 in for y.
-3 = 7x - 10
7x = 7
x = 1

2.) Plug -8 in for y.
-8 = -2x - 12
-2x = 4
x = -2

9.) Plug -8x in for y.
2x + 4(-8x) = 0
2x - 32x = 0
-30x = 0
x = 0

10.) Plug 2x in for y.
6x + 7(2x) = 20
6x + 14x = 20
20x = 20
x = 1


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<h2>Answer:</h2>

The constraint which represent a thriving population of penguins at the zoo is:

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<h2>Step-by-step explanation:</h2>

Let x = the number of female penguins and y = the number of male penguins.

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