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1. |
Use substitution to solve the system of equations given below.
y = 2x
5x - y = -24 |
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A. |
(-8, -16) |
B. |
infinitely many solutions |
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C. |
no solution |
D. |
(-4, -8) |
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Hint |
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2. |
Use substitution to solve the system of equations given below.
 |
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A. |
no solution |
B. |
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C. |
(-5, 5) |
D. |
infinitely many solutions |
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Hint |
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3. |
Use substitution to solve the system of equations.
5x + 5y = -30
2x - y = 15 |
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A. |
infinitely many solutions |
B. |
no solution |
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C. |
(3, -9) |
D. |
(21, 27) |
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Hint |
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4. |
Students from the local high school are selling tickets to the town's annual carnival. Adult admission is $5.00 and child admission is $2.50. Two hours after the carnival opened its first day, 440 tickets had been sold totaling $1900. How many adults and how many children entered the carnival during the first two hours it was open? |
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A. |
380 adults, 760 children |
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B. |
293 adults, 147 children |
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C. |
220 adults, 220 children |
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D. |
320 adults, 120 children |
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Hint |
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5. |
Use substitution to solve the system of equations given by x – 4y = 24 and 3x – 4y = 16. |
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A. |
(-4, -7) |
B. |
(-4, 7) |
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C. |
(10, 3.5) |
D. |
(10, -3.5) |
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Hint |
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