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3 years ago

When 4 times a number is increased by 40, the answer is the same as when 100 is decreased by the number. find the number?

1 answer:

8 0

The number is x

4x+40=100-x
add x to both sides
5x+40=100
minus 40 both sides
5x=60
divide both sides by 5
x=12
the number is 12

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9 in 20 or 9/20 or 45/100 or 45 percent
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3 years ago

CORRECT ANSWERS ONLY! WILL GIVE BRAINLIEST!

IrinaVladis [17]

Answer:

3rd graph (on bottom left)

Step-by-step explanation:

First, find the zeros of the function.

f(x) = x² - x - 2
f(x) = x² + x - 2x - 2
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Therefore, the graph of the function intersects the x-axis at :

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The correct graph is 3rd graph (on bottom left)

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2 years ago

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Shalnov [3]

Answer:

6 games

Step-by-step explanation:

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3 years ago

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SashulF [63]

Answer:

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Step-by-step explanation:

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3 years ago

Find the volume of the cone

irina1246 [14]

Answer:

The volume of the cone is 12936 cubic mm.

Step-by-step explanation:

Given

Circumference of base = 132 mm

Height of the cone = 28 mm

Solution

Formula of circumference = $2\pi r$ = 132 mm

$\therefore\ r= \frac{132}{2 \pi } = 21 mm$

Now volume of cone = $\frac{1}{3} \times\pi \times r^{2} \times h$

on substituting the value of r and h we get ;

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4 years ago