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zubka84 [21]
2 years ago
7

Solve the system of equations.

Mathematics
1 answer:
KatRina [158]2 years ago
5 0
Solve by Substitution
Answer:
x = -5
y = -2
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A family spent $65 on dinner and left a 20% tip. What was the total cost of their meal?
Oxana [17]

Answer: B, $78

Step-by-step explanation:

If the tip is 20% of the dinner cost, then we have to first find what is 20% of 65.

20% x 65 = 13. So the tip for the dinner is 13 dollars.

Now we have to add it to the original dinner cost.

65 + 13 = 78.

Therefore, the total cost of their meal is 78 dollars. So the answer is B, $78!

7 0
3 years ago
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Serggg [28]
Lets consider SAM's age is 'x'  and Hank's age is 'y'
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so x = 24 - y
Now replace x value in equation 1
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y= 72/8
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3 years ago
Can someone help me out with this one?
Juliette [100K]
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3 years ago
What letter is s in 8s=1/2
Tcecarenko [31]
We find the value for s here. 

8s = 1/2
8s =  \frac{1}{2} 
 \\ 
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Answer:

Prime

Step-by-step explanation:

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