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3 years ago

After a 75% reduction, you purchase a new DVD player on sale for $136. What was the original price of the DVD player

Mathematics

1 answer:

iogann1982 [59]3 years ago

8 0

Answer:

$544

Step-by-step explanation:

To determine the original price of the DVD player considering that you know that it had a 75% reduction, you can use a rule of three as the price of $136 represents 25% of the original price and with this you can calculate the price that represents 100%:

$136 → 25%

x ← 100%

x=(136*100)/25=$544

According to this, the answer is that the original price of the DVD player was $544.

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3 years ago

7/8 = ?/48<br> A.13<br> B. 1<br> C. 42<br> D. 6

Ugo [173]

Hi Brainiac

7/8 =?/48

Let's replace the unknown place by x

7/8 = x/48

Cross multiply

(7)(48)= (X)(8)

336 = 8x

Flip it

8x = 336

Divide both sides by 8

8x/8 = 336/8

x= 42

The answer is C

Now if you wanna see if the answer is good just replace 42 in blank space

7/8 = 42/48

Now didivde 7 by 8 and divide 42 by 48

7/8= 0.875

42/48= 0.875

The answer C is correct

I hope that's help:)

If you have questions please let me know :)

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3 years ago

What is £42 increased by 10%

lara [203]

$42+42 \cdot 10\%=42+42 \cdot 0.1=\underline{\underline{\pounds 46.2}}$

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3 years ago

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If x is a positive number greater than 10, what is always true about the solution to the problem to -3 + x ?

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Step-by-step explanation:

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