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insens350 [35]
3 years ago
11

Solve each system of equations by substitution

Mathematics
2 answers:
irina1246 [14]3 years ago
8 0

Answer:

x=7\\y=3

german3 years ago
5 0
X + 4y = 19
x = 19 - 4y

*substitute it for the second equation*
x - 2y = 1
19 - 4y - 2y = 1
19 - 6y = 1
-6y = -18
y = 3

x + 4y = 19
x + 12 = 19
x = 7

x.y = 3.7 = 21
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Answer:

The unit rate is equal to 0.15\frac{\$}{ounce}

Step-by-step explanation:

we know that

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In this problem to find the unit rate, divide the total cost of cereal by the total weight of cereal

so

\frac{2.10}{14}\frac{\$}{ounces} =0.15\frac{\$}{ounce}

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3 years ago
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jonny [76]

The answer is 25%

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Anuta_ua [19.1K]

Answer:

The area is 196π, or 615.752160 when evaluated to 6 decimal places.

Step-by-step explanation:

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FromTheMoon [43]

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D

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3 years ago
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