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Biblioteka

Substitution Method

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Posljednje ažuriranje almost 4 years ago
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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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More practice with word problems! Choose 3 of the following to complete. Check your answers here.

Pitanje 1
1.

Solve for y:

SHOW YOUR WORK

Pitanje 2
2.

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

Pitanje 3
3.

Solve the linear system using substitution. SHOW YOUR WORK

Type in your ordered pair for your answer here:

Pitanje 4
4.

Solve the linear system using substitution. SHOW YOUR WORK

Type in your ordered pair for your answer here:

Pitanje 5
5.

Solve the linear system using substitution. SHOW YOUR WORK

Type in your ordered pair for your answer here:

Pitanje 6
6.

Solve the linear system using substitution. SHOW YOUR WORK

Type in your ordered pair for your answer here:

Pitanje 7
7.

Solve the linear system using substitution. SHOW YOUR WORK

Type in your ordered pair for your answer here:

Pitanje 8
8.

How many pairs of sticks did he buy? SHOW YOUR WORK

Pitanje 9
9.

How many brushes did he buy? SHOW YOUR WORK

Pitanje 10
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)

Pitanje 11
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)

Pitanje 12
12.

How many households did you mow the lawn for? SHOW YOUR WORK

Pitanje 13
13.

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

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Pitanje 14
14.

Which 3 did you choose?