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3 years ago

Isabella buys a computer that is on sale for 30% off the original price. The original price is $216 more than the sale price.

Mathematics

1 answer:

kakasveta [241]3 years ago

7 0

Answer:

$720$

Step-by-step explanation:

Set the problem up as a proportion

$\frac{216}{x}= \frac{30}{100}$

cross multiply

$21600=30x$

divide both sides by 30

$720=x$

plz mark me brainliest. :)

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So all the possible solutions are:

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First you need to solve the real inequality to understand how to find the rest of the possible equations.

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So now we know the real answer, but it ask for all possible answers.

(Means anything larger than 300 when you plug it into x - 78 > 300.)

Numbers that are greater than 378:

1.) $377-78=299 > 300$ (False)

2.) $523-78=445>300$ (True)

3.) $0-78=-78>300$ (False)

4.) $-62-78=-140>300$ (False)

5.) $400-78=322>300$ (True)

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8.) $378.6-78=300.6>300$ (True)

______________________________

$\bold{Hope~this~helps!}\\\bold{If~you~need~help~with~anything~else,~feel~free~to~ask!}\\\\\bold{~~~~~-TotallyNotTrillex}$

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