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Nimfa-mama [501]
3 years ago
13

Subtract the following polynomials, then place the answer in the proper location on the grid.

Mathematics
1 answer:
blondinia [14]3 years ago
8 0

Answer:

3x^2-x+5x-10+9=3x^2+4x-1

Step-by-step explanation:3x^2-x+5x-10+9=3x^2+4x-1

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Pineapples cost $2.50 each and mangos cost $1.50 each. Tim purchased 15 pieces of fruit for $29.50. How many pineapples and how
kotykmax [81]
We can create equations to solve this.

2.50p + 1.50m = 29.50
p + m = 15

Solve for a variable in the 2nd equation and use the substitution method to solve.

p + m = 15

Subtract p to both sides:

m = -p + 15

Plug in -p + 15 for m in the first equation.

2.50p + 1.50(-p + 15) = 29.50

Distribute:

2.50p - 1.50p + 22.50 = 29.50

Combine like terms:

p + 22.50 = 29.50

Subtract 22.50 to both sides:

p = 7

Now plug this into any of the two equations and solve for the other variable.

p + m = 15

7 + m = 15

Subtract 7 to both sides:

m = 8

So he purchased 7 pineapples and 8 mangos.
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3 years ago
Find the error in the problem.
Sonbull [250]
The 2nd step, you're supposed to combine like terms (20h and 2h) but not the 5 because it doesn't have a h next to it.
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3 years ago
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Boris bought 5 CDs that were each the same price. Including sales tax, he paid a total of $59.50. Each CD had a tax of $0.70. wh
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Answer:

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Step-by-step explanation:

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Answer:

D: 11

Step-by-step explanation:

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Solve for x. x^3=81/25
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1.08=x idk I think I. Hope this helped
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