3 years ago

(Dividing polynomials ick!) Please help I'm failing summer class:)

Mathematics

1 answer:

Nata [24]3 years ago

4 0

Answer:

The answer is 9 (D).

Step-by-step explanation:

Hope this helps!

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A store buys a jacket for $20.00 and then sells it to customers for 80% more than that. What is the selling price of the jacket?

Elis [28]

Your answer would be 36.

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3 years ago

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An artist uses different types of paper to create her masterpieces. She has shiny metallic paper and pink glittery paper. The sh

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Answer:

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2 years ago

Sorry to the people who were helping me earlier, but I actually don't get this one. I really need help if anyone could help with

Fed [463]

7/12
12/7
1`2/7
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a reciprocal you just flip the fraction

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9(2w−y)=21w−9y Solve for y

valentinak56 [21]

9(2w−y)=21w−9y

First you multiply the numbers in the parenthesis by 9

$18w-9y=21w-9y$

subtract. 21w-18w=3w

$-9y=3w-9y$

add. -9y+9y=0

$0=3w$

divide.

$0=w$

Final answer is 0.

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2 years ago

Eva has £6.05 in her moneybox.

PIT_PIT [208]

Answer:

11 of 20p, 22 of 10p and 33 of 5p

Step-by-step explanation:

Eva has 20p, 10p and 5p coins, total of £6.05 = 605p

Let 20p=x, 10p=y, 5p=z

Then:

20x + 10y + 5z = 605
y : x = 2 : 1 ⇒ x= y/2
y : z = 2 : 3 ⇒ z= 3y/2

Rewriting the first equation considering next two:

10y + 10y + 7.5y = 605
27.5y = 605
y= 605/27.5
y= 22
x= y/2 = 22/2 = 11
z = 3y/2 = 3*11 = 33

Answer: 11 of 20p coins, 22 of 10p coins and 33 of 5p coins

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2 years ago