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3 years ago

If r - 5y = 6, what is the value of y when:=-4?

Mathematics

2 answers:

charle [14.2K]3 years ago

6 0

Answer:

-2/5 or in decimal form, -0.4

Step-by-step explanation:

ryzh [129]3 years ago

4 0

Answer:

r=26

Step-by-step explanation:

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The Sugar Sweet Company is going to transport its sugar to market. It will cost $4500 to rent trucks, and it will cost an additi

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C(s) = 175s + 4500 or y = 175x + 4500

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C(12) = 2100 + 4500
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3 years ago

Four rulers and three pencilds cost 2.15

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Answer:

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Step-by-step explanation:

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2 years ago

Which of the following gives all of the coefficients of the algebraic expression -2x2 + 17 -15x + 7xy?

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The answer is -15, -2,7

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3 years ago

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3 years ago

Expressed as a product of its prime factors in index form, a number N is

Elena-2011 [213]

<u>ANSWER</u>

$5N^2=3^{2} \times 5^{5} \times x^{6}$

<u>EXPLANATION</u>

$N=3\times5^2 \times x^3$ .

$5N^2=5(3\times5^2 \times x^3)^2$

Recall this property of exponents;

$(a^m)^2=a^{m} \times a^m$

So our product becomes;

$5N^2=5(3\times5^2 \times x^3) \times (3\times5^2 \times x^3)$

$5N^2=5\times 3\times 3 \times 5^2 \times 5^2 \times x^3 \times x^3$

$5N^2=3\times 3\times 5 \times 5^2 \times 5^2 \times x^3 \times x^3$

Recall this law of exponents:

$a^m \times a^n =a ^{m+n}$

$5N^2=3^{1+1} \times 5^{1+2+2} \times x^{3+3}$

$5N^2=3^{2} \times 5^{5} \times x^{6}$

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3 years ago