Answer:
Your answer is 60
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Answer:

Step-by-step explanation:
Let
x-----> the number of girls
y-----> the number of boys
we know that
-----> equation A

isolate the variable y
-----> equation B
Substitute equation B in equation A



Answer:
85
but my guess to get the four boxes you would dived it by 4 so 21 per box
Answer:42
Step-by-step explanation:
10 1/2 = 21/2
21/2 divided by 1/4
=21/2 times 4 (keep the first number, change the sign, flip the fraction)
=84/2
=42(patties)
Answer: 0
<u>Simplify both sides of the equation</u>
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<u>Subtract 25z² from both sides</u>
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<u>Add 15z to both sides</u>
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<u>Subtract 2 from both sides</u>
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Final Answer: 
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