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aleksandrvk [35]
3 years ago
11

Erin spent $15.30 on ingredients for cookies she’s making for the school bake sale. How many cookies must she sell at $0.35 a pi

ece to make a profit
Mathematics
2 answers:
blondinia [14]3 years ago
4 0

Answer:

she needs to sell at least 44 cookies to make a $0.10 profit

Step-by-step explanation:

to find the answer all you have to do is divide 15.30 by 0.35

hjlf3 years ago
3 0

Answer: 44

Step-by-step explanation:

first set up an equation.

    0.35c = 15.30

next you want to get c by itself so you divide both sides by 0.35.

    0.35c/0.35 = 15.30/0.35

    c = 43.7142857 then you round that to 44

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vekshin1
Hello there!

Evaluate a²  for a = -4

The first step we need to do is replace a by -4

So we have (-4)²

Now what you have realize is that we need to multiply -4 by itself twice.

So it should looks like this:

-4 * -4

The rules says that when we have minus * minus, the answer is positive.

So we have -4 * -4 = 16

Answer: 16

I hope this helps!

Please let us know if you have other questions.

#Garebear
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2 years ago
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lubasha [3.4K]

Answer:

see attachment

Step-by-step explanation:

The given equation is

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The graph of the left hand side of this equation is

y =  -  \frac{1}{2}{x}^{2}  + 2

This quadratic graph has its vertex at (0,2) and turns upside down.

The right hand side of the equation is

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The two graphs intersects at two points , which are (-2,0) and (2,0).

6 0
3 years ago
Tony fills his car with gas. His tank holds 14.0 gallons of gas. He pumps 8.37 gallons into the tank. If his car averages 27.6 m
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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