8. Three friends each bought two slices of pizza and a drink at the mall. If drinks cost $0.75,
1 answer:
Answer:
one slice of pizza costs 3 dollars.
Step-by-step explanation:
you multiply 0.75 by 3.
subtract 2.25 by 9
divide 9 by 3
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Step-by-step explanation:
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-3x+1
Step-by-step explanation:
Answer:
x=1/2, y=2;
Step-by-step explanation:
First pair:
2x-5y =-9
4x+5y=12
Add them together:
6x=3
x = 1/2
2(1/2) - 5y =-9
1-5y = -9
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y=10/5=2
For a monic quadratic (factor of 1 on 
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Answer: 49/4
