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2 years ago

7

Explain multi step equations

1 answer:

Mice21 [21]2 years ago

3 0

Multi-step equations are equations that require more than one step to solve.

For example:
2x+6 = 10 You subtract 6 from both sides
2x= 4 Divide both sides by 2
x=2 It took 2 steps to solve for x, so it is a muti-step equation.

One step equation:
2x =6 divide 2 by both sides
x=3 It only took one step, so it is an one-step equation.

Hope this can help you! Please put branliest answer if you like it!

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How does the volume of a cylinder change if the radius is quadrupled and the height is reduced to a third of its original size?

KIM [24]

Answer:

the answer is 1/3 pie r2h

Step-by-step explanation:

The volume of a cylinder is given by πr²h where, r is the radius of the cylinder and h is the height of the cylinder.

Also r=d/2 , where d is the diameter of the cylinder.

Therefore if the diameter is halved, the radius also gets halved ,i.e., it becomes r/2. Therefore the new volume = π(r/2)²h

=π(r²/4)h

=(1/4) πr²h

Therefore the volume becomes one-fourth of the initial volume.

8 0

2 years ago

The perimeter of a rectangle is found by using the formula P = 2l + 2w, where P is the perimeter, l is the length and w is the w

velikii [3]

Answer:

#1: 11 cm

#2: 16.5 in

#3: 2.5 feet

Step-by-step explanation:

#1

$P=2l+2w$ Solve for width by substracting 2l on both sides to isolate 2w

$P-2l=2w$

or

$2w=P-2l$

Replace.

$2w=26-2(2)\\2w=26-4\\2w=22\\w=\frac{22}{2}\\ w=11cm$

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#2

$P=2l+2w$

$P=2(3.5)+2(4.75)\\P =7+9.5\\P=16.5in$

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#3

$P=2l+2w$

Solve for l

$2l=P-2w\\2l=7-2(1)\\2l=7-2\\2l=5\\l=\frac{5}{2}\\ l=2.5feet$

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3 years ago

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Answer:

Step-by-step explanation:

you can think in a reverse way:

Take

$3x(x^2+2x+3y^2)= 3x^3+6x^2+9xy^2.$

So the answer is

$3x^3+6x^2+9xy^2 = 3x(x^2+2x+3y^2)$

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2 years ago

Write an equivalent expression for 2(x + 6) - 8

Dafna1 [17]

An equivalent expression would be 2x+4

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2 years ago

The diameter of a circle is 50 inches.The radius of the circle is A) 100 inches B) 25 inches C) 157 inches D) 45 inches ...so wh

klasskru [66]

The answer is B, 25 inches.

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2 years ago

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