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OleMash [197]
2 years ago
13

What times what equals 21 but adds up to -22

Mathematics
1 answer:
attashe74 [19]2 years ago
4 0
Let "what" and "what" be A and B

Put this in an algebraic equation
A * B = 21
A + B = -22

A must = -21 and B must = -1   , this is because two negatives multiply to make a positive

A + B = -22    ,  -21 +-1 = -22 

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A jar was full of quarters and $1 coins. 2/5 of the coins in the jar were quarters. The rest were $1 coins. There were 10 more $
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Answer:

50 coins

Step-by-step explanation:

if there is 1/5 more 1 dollar coins than quarters that means 1/5 of the total number is equal to 10, and if 1/5 is 10 that means 5*10=50 is the total number

6 0
2 years ago
the pie factory sells an apple pie with a diameter of 16 in. for $10.99. What's the approximate cost per square inch of surface
AURORKA [14]
I'm going to assume the crust covered by the dosenot matter because the total surface area cannot be found without the depth of the pie.

So the surface are is the area of the top of the pie, the top of the pie is circular and is equal to 2\pir²

The diameter is the sum of 2 radii, hence r=8

D=12
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A= 2\pir²
A=2\pi8² 
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A=128\pi

If the pie cost 10.99, the cost per inch can be found by dividing the area by cost

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cost/inch =11.64\pi
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The pie costs 36 cents per square inch
5 0
3 years ago
You have $270 in your bank account. You plan to save $80 from your paycheck each week. Which graph shows your bank account balan
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7 0
3 years ago
Read 2 more answers
Which linear inequality is represented by the graph? y ≥1/3 1/3x – 4 y ≤ x – 4 y ≤1/3x + 4 y ≥1/3x + 4
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Answer:

Step-by-step explanation:

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She walked the most on Friday because you have to find the LCD. The LCD is 24.
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So, 4 times 6 is 24. This is the denominator and 4 times 3 is 18. This is the numerator.
If you do the same with all of the fractions then you will have the fractions of, 18 over 24, 12 over 24, and 9 over 24.
Look at all the numerators (the number on top of the fraction) and decide which one is the biggest.
18 is the biggest and since the fraction 18 over 24 was originally 3 over 4, this means that she walked the most on Friday.
Hoped this helps!!
3 0
3 years ago
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