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olya-2409 [2.1K]
1 year ago
14

Adam and Jack are selling pies for a school fundraiser. Customers can buy apple pies and

Mathematics
1 answer:
Ket [755]1 year ago
5 0

The cost of an apple pie is $13 and a blackberry pie is $18.

<h3>How to find the cost?</h3>

Let A be apple pies and B be blackberry pies.

3A + 11B = $237

3A + 12B = $255.

On solving the quadratic equation, we get

-B = -18

Therefore,

B = 18

Substitute B in any one of the equations,

3A + 11*18 = 237

3A = 237 - 198

A = 39/3

A = 13

The cost of an apple pie is $13 and a blackberry pie is $18.

To learn more about cost, refer

brainly.com/question/19104371

#SPJ13

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kkurt [141]

Answer:

D. y = –3x2

Step-by-step explanation:

Answer:

y = -3x^2

Step-by-step explanation:

A quadratic function has a leading coefficient which determines its width. When |a| < 1 the graph is wider. When |a| > 1 the graph is narrower. This means y = -3x^2 is the narrowest graph since 3 is the greatest.

3 0
3 years ago
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PLS HELP MEE ASAP 1 MIN LEFT HELPP!!!!!!!!!
artcher [175]

Answer: BC = 5.83

Step-by-step explanation:

Luckily, the triangle is placed on the graph nicely so we can count the legs of the triangle:

AB = 5

AC = 3

BC = ?

To find BC, we can simply use the Pythagorean Theorem:

a^{2}+b^{2}=c^{2}

5^2 + 3^2 = c^2

25 + 9 = c^2

34 = c^2

Now square root to find c, or BC.

\sqrt{34}=\sqrt{c^{2} }

c = 5.83 (rounded by nearest hundredth)

4 0
3 years ago
Can you please answer this question I need to submit in 30 min please HURRY ASAP PLEASE NEED HELP PLEASE !!!!!!!!!!!
Virty [35]

Answer:

The answer is "21"

Step-by-step explanation:

mn + 3r

m = 5

n = 4

r = 1/3

Now just substitute the values given in the question into the equation

5(4) + 3(1/3)

Multiply 5 and 4 to get 20

20 + 3(1/3)

3(1/3) cancels out and becomes 1

20 + 1

Add 20 and 1

21

So "21" is your answer

6 0
3 years ago
Sam purchased a computer for $800. The price of the printer that Mary purchased was 40% the price that Sam paid. How much did Ma
JulsSmile [24]

Amount paid by Mary for her computer is \$800.

<u>Solution: </u>

Given that, Sam purchased a computer for \$800.

Price of the printer that Mary purchased was 40\% the price that Sam paid.

Need to calculate amount Mary pay for her computer.  Assuming that Mary purchased same computer that is purchased by Sam and store selling the computer have same rates for all customers .

So, amount Mary pay for computer = Amount Sam paid for computer = \$800

Hence, amount paid by Mary for her computer is \$800.

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3 years ago
M² +4m - 2<br><br> What is the answer
lesya692 [45]

Answer:

Doesn't factor

Step-by-step explanation:

m^2+4m-2

Factor

___________

Assuming you want m factored, you can follow a rule I use. Find two numbers that multiply to c (in this case -2), and use the same two numbers to add them to equal b (in this case 4).

m^2 + 4m - 2

There are no numbers that can do this, therefore this is unfactorable.

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