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3 years ago

Use the substitute method to solve the system of equations.

Mathematics

1 answer:

Marizza181 [45]3 years ago

3 0

Answer:

Step-by-step explanation:

Put the second y into the first equation

3x + y = 10 substitute for y

3x + 6x + 1 = 10 Combine like terms on the left

9x + 1 = 10 Subtract 1 from both sides

9x = 10 - 1 Combine the right.

9x = 9 Divide by 9

x = 9/9 Divide

x = 1

The answer is right there. Only B is possible

y = 6x + 1

y = 6(1) + 1

y = 6 + 1

y = 7

Answer B

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The standard deviation formula may seem confusing, but it will make sense after we break it down. In subsequent sections we will explain an interactive example, step by step. Here's a quick preview of the steps we're about to follow:

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