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LiRa [457]
3 years ago
14

A retail store buys items from the manufacturer and then marks up the price 70%. During a sale, prices are discounted 20%. The s

tore makes what percent profit?
Mathematics
2 answers:
sweet-ann [11.9K]3 years ago
5 0
The store makes a 50% profit. Hope it helps :)
Morgarella [4.7K]3 years ago
4 0
For example let's say a 1 dollar item was marked up 70% 1(1.7)=1.7 dollars after mark up. The sale discounts 20% of 1.7 dollars so the new price will be 80% of 1.7. 1.7(.8)=1.36 is the price after discount. Then to find the percent profit you take the new price subtract it by old one and divide by old price. So( 1.36-1)/1=0.36
0.36*100=36% profit
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Solve the radical equation. square root 6n-11= n – 3 Which solution is extraneous? A.)2
Anvisha [2.4K]
ANSWER


D) 10

EXPLANATION

We want to solve the radical equation,

\sqrt{6n - 11}  = n - 3

Square both sides,



6n - 11 = (n - 3) ^{2}

Expand brackets on right hand side,

6n - 11 =  {n}^{2}  - 6n + 9

Rewrite in general quadratic equation form,

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Apply the zero product principle to get,

n = 2 \: or \: n = 10


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1 =  - 1


This statement is false, hence 2 is an extraneous solution


We put n=10, to get

\sqrt{6(10) - 11}  = 10 - 3


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3 0
4 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B7%7D%7B8%7D%20%20%5Ctimes%20%20%5Cfrac%7B2%7D%7B4%7D%20%20%3D%20" id="TexFormula1
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Answer:

7/16

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