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3 years ago

40% of 120 is what number? Question 1 options: A: 48 B: 3 C: 4,800

Mathematics

2 answers:

Serhud [2]3 years ago

7 0

Answer:

Step-by-step explanation:

40% of 120

40 x 120 = 4800 / 100 = 48

100

inysia [295]3 years ago

3 0

Answer:

A- 48

Step-by-step explanation:

You divide your percentage by 100. So, 40% would be 40 divided by 100 or . 40. Once you have the decimal version of your percentage, simply multiply it by the given number.

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Volgvan

Answer:

x = 40 1/2

Step-by-step explanation:

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3 years ago

The mass of an electron is approximately 9.1 x 10^-31 kilograms.

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Answer:

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Step-by-step explanation:

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3 years ago

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T is a point inside parallelogram ABCD. The area of ΔTAB = 11, the area of ΔTBC = 4, and the area of ΔTCD = 6. Find the area of

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3 years ago

there are 120 people attending a wedding reception. There are 16 tables. Some are round and some are square. the round table sea

alexira [117]

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3 years ago

A coach purchases 47 hats for his players and their families at a total cost of $302. The cost of a small hat is $5.50. A medium

frosja888 [35]

Answer:

The answer is below

Step-by-step explanation:

Let x represent the number of small hat purchased, y represent the number of medium hat purchased and z represent the number of large hat purchased.

Since a total of 47 hats where purchased, hence:

x + y + z = 47 (1)

Also, he spent a total of $302, hence:

5.5x + 6y + 7z = 302 (2)

He purchases three times as many medium hats as small hats, hence:

y = 3x

-x + 3y = 0 (3)

Represent equations 1, 2 and 3 in matrix form gives:

$\left[\begin{array}{ccc}1&1&1\\5.5&6&7\\-3&1&0\end{array}\right] \left[\begin{array}{c}x\\y\\z\end{array}\right] = \left[\begin{array}{c}47\\302\\0\end{array}\right] \\\\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}1&1&1\\5.5&6&7\\-3&1&0\end{array}\right] ^{-1} \left[\begin{array}{c}47\\302\\0\end{array}\right] \\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] = \left[\begin{array}{c}6\\18\\23\end{array}\right]$

Therefore he purchases 6 small hats, 18 medium hats and 23 large hats

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3 years ago