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Nata [24]
4 years ago
6

Which expression is equivalent to 18 - 7? Apex

Mathematics
1 answer:
Dominik [7]4 years ago
7 0

Answer: See explanation

Step-by-step explanation:

Your question isn't complete but let me help out.

To get an expression that is equivalent to 18 - 7, you will have to know the value of 18-7 first. This will be:

= 18 - 7

= 11

Since we know that 18-7 = 11, then from the options that you're given, you'll find the one that is also equal to 12 which will be the answer.

For example, let's say you're given the options of a. 20 - 6 and b. 3 + 19 - 11.

20 - 6 = 14. This means that it isn't an equivalent of 18-7.

3+19-11 = 11. So, this is an equivalent of 18-7.

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sasho [114]

Answer:

267.95 cubic meters

Explanation:

volume of sphere: (4/3)π(radius)³

Here given:

  • radius: 4 meter

Volume:

  • (4/3)π(radius)³

<u>insert values</u>

  • (4/3)(3.14)(4)³

<u>simplify</u>

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<u>final answer</u>

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4 0
2 years ago
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The price of a certain property increased by 10% in the first year, decreased by 20% in the second year, and increased by 25% in
Marizza181 [45]

Answer:

1) $4400

2) $4400

Step-by-step explanation:

Let

X = price in first year

Y = price in 2nd year

Z = price in 3rd year

A = price in the end of 3rd year

Y = 1.1 X

Z = 0.8 Y

substitute Y into Z get Z = 0.88 X

A = 1.25 Z= 1.25(0.88X) = 1.1 X

1)

(125/100) Z = 22000

Z = 22000 x 100 / 125 = 17600

Z = 0.8Y

Y = Z/0.8 = 1.25Z

Amount of dollar decrease in 2nd year = Y - Z

= 1.25Z - Z = 0.25Z = 0.25 x 17600 = 4400 dollar

2)

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Hence, X - Z = (A-Z) - 2000

X - 0.8X = 1.1 X - 0.88 X - 2000

X - 0.88X - 1.1X + 088X = -2000

-0.1 X = -2000

0.1 X = 2000

X = 20000

Amount of dollar decrease during 2nd year = Y - Z = 1.1X - 0.88X = 0.22X

= (0.22) x (20000) = 4400 dollars

3 0
3 years ago
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Likurg_2 [28]
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so to answer you should do 0.45+0.35= 0.8
then 1-0.8 =0.2

so Z is 0.2
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valkas [14]

Answer:(4.5, 6.5)

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