3 years ago

Explain why the product of a nonzero rational number and an irrational number is irrational

1 answer:

3 0

Answer:

If you multiply any irrational number by the rational number zero, the result will be zero, which is rational. Any other situation, however, of a rational times an irrational will be irrational.

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Melanie's room measures 10 ft by 12 ft. Her rug covers 90 ft². Explain how to determine the percent of floor covered by the rug.

Inessa [10]

$\huge \bf༆ Answer ༄$

Here's the solution ~

Area of floor is ;

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:10 \times 12$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:120 \: ft {}^{2}$

Area covered by rug is ;

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:90 \: ft {}^{2}$

So, the percentage of floor covered by rug is ~

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \: \dfrac{90}{120} \times 100$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \: \dfrac{3}{4} \times 100$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:3 \times 25$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:75 \%$

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Step-by-step explanation:

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Tell whether (12, 43) is a solution of y = 3x + 7.<br> yes<br> no

Len [333]

Answer:

yes

Step-by-step explanation:

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2 years ago

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Sand and gravel are mixed in the ratio 5:3 to form ballast.

r-ruslan [8.4K]

<h3>Answer: 1250 kg of sand</h3>

Work Shown:

sand/gravel = 5/3

x/750 = 5/3

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x = 1250

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