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butalik [34]
3 years ago
11

Omar has a new credit card. He earns 300300300 reward points for every 100100100 dollars he spends. If omar earned 180018001800

reward points, how much money did he spend?
Mathematics
2 answers:
jeka943 years ago
5 0

Omar spent 600 dollars for earning 1800 reward points.

<em><u>Explanation</u></em>

Omar earns 300 reward points for every 100 dollars he spends.

Suppose, he spent  x dollar for 1800 reward points.

Now <u>according to the ratio of "amount of money spent" and "reward points"</u> , the equation will be......

\frac{x}{1800}=\frac{100}{300}\\ \\ 300x=180000\\ \\ x=\frac{180000}{300}=600

Thus, Omar spent 600 dollars for earning 1800 reward points.

lutik1710 [3]3 years ago
3 0

Answer:

600

Step-by-step explanation:

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Solve the rational function of (check image) and check for extraneous solutions
Oxana [17]

Answer:

Option A is correct.

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Step-by-step explanation:

Given the expression

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Solving the rational function

\frac{5}{x}=\frac{4x+1}{x^2}

Apply fraction across multiply: if \frac{a}{b}=\frac{c}{d}\mathrm{\:then\:}a\cdot \:d=b\cdot \:c

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Subtract x(4x+1) from both sides

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Simplify

5x^2-x\left(4x+1\right)=0

5x² - 4x² - x = 0

x² - x = 0

Factor x² - x = x(x-1)

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Using the zero factor principle

if ab=0, then a=0 or b=0 (or both a=0 and b=0)

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But, it is clear that if we substitute x = 0, the equation becomes undefined because we can not have the denominator to be 0.

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