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Ksenya-84 [330]
3 years ago
12

Please help for 18 n 19

Mathematics
1 answer:
harina [27]3 years ago
5 0
1) -x-7 + 2x -18 = x -25 => third is correct
2) 14/x = 7 => x = 14/7 => first is ok
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A bookstores having a 30% off sale Diary of a Wimpy Kid books are now $6.36 each what is the original price of the book
masha68 [24]
Answer: $9.09


Explanation:

100% - 30% = 70

\textnormal {Original Price} = \cfrac{6.36}{70} \times 100 = \$9.09



The Wise Orange loves to read <span>Diary of a Wimpy Kid. Which store is having that 30% discount?</span>
7 0
3 years ago
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A florist sold 12 flower bouqets yesterday, including 2 daisy bouquets. Based on past data, how many of the next 18 boquetes sol
My name is Ann [436]

Answer: 3

Step-by-step explanation:

A florist sold 12 flower bouqets yesterday, which included 2 daisy bouquets. This shows that the fraction of daisy bouquet is 2/12 = 1/6.

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4 0
3 years ago
Please answer these and find the slope intercept form for each one.
damaskus [11]
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3. y=2/5x8
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5 0
3 years ago
Explain why congruent figures have the same surface area?
Hatshy [7]
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5 0
3 years ago
Coefficient of b in expansion of (3+b)^4
Margarita [4]
Are you sure you want ONLY the coefficient of b?  If you expand this, you will have b in 3 of 4 terms.

According to Pascal's Triangle, the coefficients of (a+b)^4 are as follows:

                             1
                        1    2    1
                   1      3    3     1
              1       4     6     4     1

So (a+b)^4 would be 1a^4 + 4a^3b + 6a^2b^2 + 4ab^3 + b^4

Here, you want (3 + b)^4.  Here's what that looks like:

3^4 + 4[3^3*b] + 6[3^2*b^2] + 4[3*b^3] + 1[b^4]

Which coeff did you want?
4 0
3 years ago
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