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P2.3: Create/Solving Systems of Eqn

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Last updated almost 4 years ago
16 questions
Note from the author:
Unless otherwise stated, use (x, y) format, with exactly one space after the comma. Use fractions, not decimals.

If there is no solution, type "no solution"
Unless otherwise stated, use (x, y) format, with exactly one space after the comma. Use fractions, not decimals.

If there is no solution, type "no solution"
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Question 1
1.

Solve the system.

y=\frac{1}{4}x+1
y=-x-9

Question 2
2.

Solve the system.

y=2x-8
13x+2y=18

Question 3
3.

Solve the system

-12x=30y+60
2x+5y=20

Question 4
4.

Solve the system

3x+y=11
5x-y=21

Question 5
5.

Solve the system.

2x-9y=-51
2x-3y=-9

Question 6
6.

Solve the system.

4x-11y=68
6x+5y=-27

Question 7
7.

Solve the system.

y=-2x+14
y=5x-7

Question 8
8.

Solve the system.

x-y=-9
8x-3y=-62

Question 9
9.

Solve the system.

7x-y=34
2x+3y=-10

Question 10
10.

Solve the system.

2x=16-8y
x+4y=25

At a fast food restaurant, four cheeseburgers and five small fries have a total of 2310 cal. Three cheeseburgers and two small fries have a total of 1330 cal.

Let x be the calories in a cheeseburger, and y be the calories in a small fry.
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Question 11
11.

Write an equation to represent the first sentence. Use standard form (Ax+By=C).

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Question 12
12.

How many calories are in each food?

Use (x, y) format.

In May, a homeowner used 150 units of gas and 520 units of electric for a cost of $84.20. In June, she used 210 units of gas and 405 units of electric for a cost of $82.35.

Let x be the cost per unit of gas and y be the cost per unit of electric.
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Question 13
13.

Write an equation to represent the price of June. Use standard form, with numbers as seen in the problem, no "$" or spaces.

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Question 14
14.

What is the cost per unit of gas and electric?

Use (x, y) format, with one space after the comma. Round the numbers to two decimals.

Amro music sells oboes and clarinets. Last month, they sold 100 instruments. If they had sold 4 more clarinets, the clarinets sold would've tripled the oboes sold.

Let x be the oboes sold, and y be the clarinets sold.
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Question 15
15.

Write an equation for the 3rd sentence.

Use slope-intercept form, no spaces.

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Question 16
16.

How many oboes and clarinets were sold?

Use (x, y) format, with one space after the comma.