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2 years ago

M,n how much is it in math

Mathematics

1 answer:

Elena-2011 [213]2 years ago

4 0

Answer:

you can't really determine how much letters equal if there is not an equation but it represents variables that stand for integers

Step-by-step explanation:

hope this helps have a good rest of your night :) ❤

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Which number produces a rational number when multiplied by 0.4

Katyanochek1 [597]

A, B and D are already rational numbers, 0.4 itself is a rational number, two rational numbers make a product of rational number.
So A, B, D are the correct choices.

Are you sure it asks for rational numbers, not irrational number?

7 0

3 years ago

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A shirt that cost $5 is marked up 20% what is the markup

natulia [17]

Answer:

1 dollar

Step-by-step explanation:

20% = .20(percentage to decimal conversion)

.20 * 5 = 1 or 5 * .20 = 1 either way works

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3 years ago

If the length and width of a rectangle are tripled, the area of that rectangle will increase by what percentage? A) 9% B) 90% C)

shepuryov [24]

X*Y

3X*3Y =9XY

9XY/XY = 9
9*100%= 900%

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3 years ago

4x-9/y+11=0,6/y-3x=8

miskamm [114]

Answer: x=−2,y=3

Step-by-step explanation:

Hope this helps you! Have a good day!

4 0

2 years ago

A pentagonal prism has a height of 9 feet, and each base edge is 3 feet. Find the volume. Round your answer to the nearest hundr

OLga [1]

Height of the pentagon = 9 ft

Edge of base = 3 ft

$area of pentagon = \frac{s^{2}n}{4 tan\left ( \frac{180}{n} \right )}$

s is the length of any side = 3

n is the number of sides = 5

tan is the tangent function calculated in degrees

$\\ \\\\area of pentagon = \frac{3^{2}(5)}{4 tan\left ( \frac{180}{5} \right )}\\\\\\area of pentagon = \frac{9(5)}{4 tan\left ( 36 \right )}\\\\area of pentagon = \frac{45}{4 ( 0.7265 )}\\\\area of pentagon = \frac{45}{2.906}\\\\area of pentagon = 15.4852$

Volume of the pentagon = area of base (height )

Volume of the pentagon = 15.4852 (9)

Volume of the pentagon = 139.366

Volume of the pentagon = 139.37 cu.ft

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2 years ago

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M,n how much is it in math​

M,n how much is it in math