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gayaneshka [121]
3 years ago
7

A bookshop is charged $15.40 for a particular book. The shopkeeper wishes to price the book such that his profit would be 30% of

his selling price. What should be his selling price?
Mathematics
1 answer:
ElenaW [278]3 years ago
8 0
So first you start with finding 30%, and you do this by entering into a calculator 30 divided by 100 and then times it to the original book price. So:
30 divided by 100 x 15.40 = $4.62
So $4.62 is 30%, meaning all you have to do is take the original price of $15.40 and add the $4.62, so:
$15.40+$4.62= $20.02
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this is the answer

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if grace and claire parents each invested 7,600 into college saving account when the girls were born how much money will each gi
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7,600

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3 years ago
I need all these before the morning!! For 20 points
Marta_Voda [28]

Answer:

15) Option B. 3

16) Option H. 144

17) Option B. -21

18) Option H. a^4 + 2

19) Option E. -18

20) Option G. 60

Step-by-step explanation:

15) 217/4 = 54 with a remainder of 1

    217 = 4 ⋅ 54 + 1

So, the 217th digit after the decimal point of 0.3456 is one of the 4n+1st digits (with n=54) and must be 3.

16) a = 1/2, p = 1/16 * 48^2

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one is x = 3 and the second one is x = -7. The question is asking for the product so you will multiply these two x values. 3 * -7 = -21.

18) the factors of a^16 - 16 are: (a^8 + 4) (a^4 + 2) (a^4 -2)

Out of these factors that we get, (a^4 + 2) is the only polynomials listed in the answer choices.

19) 2n - 5 / n when n = 1/4

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20) The machine is reading 40 pages in 1 hour, how many will it read in 90 minutes?

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The machine will read 60 pages in 90 mins.

5 0
3 years ago
Read 2 more answers
9. A pyramid has a square base with an area
Vlad [161]
  • Answer:

<em>48 ft</em>

  • Step-by-step explanation:

<em>A  = 144ft² = l²</em>

<em>144 = l²</em>

<em>l = √144</em>

<em>l = 12 ft</em>

<em>P = 4l</em>

<em>= 4×12ft</em>

<em>= 48 ft</em>

4 0
3 years ago
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