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Laabri

Unit 5 - Lesson 02 - Solving Systems using Substitution!

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Last updated almost 4 years ago
13 Nsɛmmisa
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A.4.d
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A drummer is stocking up on drum sticks and brushes. The wood sticks he buys are $10.50 a pair and the brushes are $24. He ends up spending $90 on sticks and brushes and buys two times as many pairs of sticks as brushes.

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Last year you mowed grass and shoveled snow for 12 households. You earned $225 for mowing a household's lawn for the entire year and you earned $200 for shoveling a household's walk and driveway for an entire year. You earned a total of $2600 last year.

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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Solve for y:

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2.

Tell which equation you would use to isolate a variable. Explain your reasoning.

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3.

Solve the linear system using substitution.

Type in your ordered pair for your answer here:

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4.

Solve the linear system using substitution.

Type in your ordered pair for your answer here:

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Solve the linear system using substitution.

Type in your ordered pair for your answer here:

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

Solve the linear system using substitution.

Type in your ordered pair for your answer here:

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

Solve the linear system using substitution.

Type in your ordered pair for your answer here:

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

How many pairs of sticks did he buy?

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9.

How many brushes did he buy?

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10.

Let x be the number of households you mowed for and let y be the number of households you shoveled for. Write an equation in x and y that shows the total number of households you worked for. (x = mow, y = shovel)

Asemmisa {{asɛmmisaAhyɛnsode}}
11.

Let x be the number of households you mowed for and let y be the number of households you shoveled for. Write an equation in x and y that shows the total amount of money you earned. (x = mow, y = shovel)

Asemmisa {{asɛmmisaAhyɛnsode}}
12.

How many households did you mow the lawn for?

Asemmisa {{asɛmmisaAhyɛnsode}}
13.

How many households did you shovel the walk and driveway for?