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Olenka [21]
2 years ago
5

Rearrange the equation so q is the independent variable.-7q+12r=3q-4r

Mathematics
1 answer:
aleksley [76]2 years ago
4 0

Rearranging the equation so q is the independent variable is; q = -1.6r

<h3>How to change the subject of a subject?</h3>

We are given the expression;

-7q + 12r = 3q - 4r

Since we want to make q the subject, let us rearrange the equation with variables having q on the left and others on the right side to get;

-7q - 3q = -4r - 12r

-10q = -16r

q = 16r/10

q = -1.6r

Read more about change of subject at; brainly.com/question/657646

#SPJ1

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What does 15× 1/8 equal?
stealth61 [152]
Hey there!

15 = 15/1

1/8 = 1/8

15 x 1 = 15

1 x 8 = 8

= 15/8

Simplifying 15/8 . . .

15/8 = 1 7/8

15 x 1/8 = 1 7/8 <--------

1 7/8 is your answer.

I hope this helps you.

Have a great day! :)
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your mother gave you 13.32 with which to buy a present this covered 3/5 of the cost. how much did the present cost?
Marta_Voda [28]
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Answer:

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Step-by-step explanation:

subtract 5/25 from both sides leaving A alone

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How can (4x⁵/2x²)³ be solved in 2 different ways
Margaret [11]

We assume that we need to simplify the expression in two different ways.

Answer:

One way: Raise both, the numerator and denominator, to the third power, and then simplify the expression.

Second way: Simplify the terms inside parentheses, and then raise the result to the third power.

The result of both ways is the same: \\8x^{9}

Step-by-step explanation:

<em>One way</em>

Raise both, the numerator and denominator, to the third power, and then simplify the expression:

\\ (\frac{4x^{5}}{2x^{2}})^{3}

\\ (\frac{64x^{5*3}}{8x^{2*3}})

\\ (\frac{64x^{15}}{8x^{6}})

\\ \frac{64}{8}\frac{x^{15}}{x^{6}}

\\8x^{9}

This is the first simplification.

<em>Second way</em>

Simplify the terms inside parentheses, and then raise the result to the third power.

\\ (\frac{4x^{5}}{2x^{2}})^{3}

\\ (\frac{4}{2}*\frac{x^{5}}{x^{2}})^{3}

\\ (2*x^{5-2})^{3}

\\ (2*x^{3})^{3}

\\ (2^{3}*x^{3*3})

\\ (8*x^{9})

or \\ 8x^{9}.

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3 years ago
The triangle below is isosceles. Find the length of side x in simplest radical form with
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Answer:

x=2*sqrt(5)

Step-by-step explanation:

Since the triangle is isosceles, the other side of the triangle is sqrt(10) too. By using Pythagoras theorem, we have 10+10=x^2, x=2*sqrt(5).

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