3 years ago

Solve 7n - 4(5 - 2n) = 10

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

6 0

Start with multiplication. 7n-20+8n=10. Now, combine the like terms. 15n=30. Divide. n=2.

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erastova [34]

Answer:

$x = - 23$

Step-by-step explanation:

$\frac{20 - (40 + x)}{12} \times 10 = 32.5 - 30 = 2.5$

$= > \frac{20 - (40 + x)}{12} = 0.25$

$= > \frac{20 - (40 + x)}{12} = \frac{1}{4}$

$= > 20 - (40 + x) = \frac{12}{4} = 3$

$= > 40 + x = 20 - 3 = 17$

$= > x = 17 - 40 = - 23$

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3 years ago

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prisoha [69]

Answer:

Less

Step-by-step explanation:

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6 0

3 years ago

What percent is 27.30 of 36.40 ?

Luden [163]

If you would like to know what percent is 27.30 of 36.40, you can calculate this using the following steps:

x% of 36.40 = 27.30
x/100 * 36.40 = 27.30
x/100 = 27.30/36.40
x = 27.30/36.40 * 100
x = 75

To check: 75% * 36.40 = 75/100 * 36.40 = 27.30

The correct result is 75%.

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3 years ago

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Sophie [7]

Answer:

Step-by-step explanation:

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3 years ago

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3 years ago