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4 years ago

Please answer!!!

Mathematics

1 answer:

Anastasy [175]4 years ago

8 0

3. First, turn the fractions into improper fractions

11/8 + 11/4

Since we can't divide 11 by 2 to make the denominator of the first fraction 2, let's multiply both sides of the second fraction by 2 instead.

11/8 + 11*2/4*2 = 11/8 + 22/8

(I already answered numbers 4 and 6 in a previous question you asked)

5. 1 1/2 + 2 3/4

Obviously, we'll start by converting the fraction into improper fractions.

3/2 + 11/4

Multiply both sides of the first fraction by 2

3*2/2*2 + 11/4 = 6/4 + 11/4 = 17/4

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1. A music store marks up the instruments it sells by 30%.

Elina [12.6K]

Answer:

A. $ 58.50

B. $ 80

C. No, it did not mark up 30%.

Step-by-step explanation:

Since,

$\text{Mark up percentage}=\frac{\text{Store price-Actual price}}{\text{Actual price}}\times 100$

A. We have,

Mark up percentage = 30%

Actual price = $ 45,

$\implies 30=\frac{SP - 45}{45}\times 100$

$30\times 45 = 100SP - 4500$

$1350=100SP - 4500$

$5850 = 100SP$

$\implies SP = \$ 58.50$

B. We have,

SP = $ 104,

$\implies 30=\frac{104-AP}{AP}\times 100$

$30AP = 10400 - 100AP$

$130AP=10400$

$AP=\$ 80$

C. We have,

AP = $ 75,

SP = $100,

Thus, mark up percentage = $\frac{100-75}{75}\times 100$

$=\frac{25}{75}\times 100$

$=\frac{1}{3}\times 100$

= 33.33 %

Hence, store did not mark up the price by 30%.

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Step-by-step explanation:

I couldn't see the options below but this is the right one

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Answer:

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Step-by-step explanation:

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