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Serggg [28]
3 years ago
14

If you want to buy an item in a store that costs $15 and is on sale for 15% off, then how much would the item actually cost you

after the discount? Round to the nearest cent.
Mathematics
1 answer:
scoray [572]3 years ago
5 0

Answer:

It would cost you $12.75.

Step-by-step explanation:

Model an equation, using c as the initial cost variable and x as the final cost, and then solve for x.

x =  \frac{100 - 15}{100} c \\ x =  \frac{85}{100} (15) \\ x =  \frac{17}{20} (15) \\ x =  \frac{17}{4} (3) \\ x = \frac{51}{4}  \\ x = 12.75

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The difference between two numbers is 14. if 1/3 of the larger number is subtracted from the smaller number ,the result equals 1
otez555 [7]

Answer:

Step-by-step explanation:

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x-1/3y=1/10

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x-10/30y=3/30

30x-10y=3

substitute

30x-10(-14+x)=3

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3 years ago
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3 years ago
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kifflom [539]

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2 years ago
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3 years ago
Roberta makes $9 an hour plus a 10.5% commission selling jewelry an hour shift in which she sells $880 worth of jewelry. How muc
timama [110]

Answer:

Roberta earns $164.4 on an 8 hr shift.

Step-by-step explanation:

In one hour  Roberta makes $9

So if she works for 8 hours she will be making

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Also she earns a commission of 10.5% on selling a jewellery  worth $880

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