48 is 60% of what number? A. 80 B. 28.8 C. 8 D. 0.8

Answers

Answer 1

Answer: 48 is 60% of 80

Convert your percentage into a decimal:
$(60)/(100) =0.6$

Divide 48 by the decimal:
$48 / 0.6 = 80$

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How can I anwser this ?? help me

Answers

Exactly like the previous question you posted.

-3x² - 9x = 0

Divide each side of the equation by -3 :

x² + 3x = 0

Factor the left side:

x (x + 3) = 0

This is true if x=0 or if x=-3 .

$-3x^2-9x=0\n -3x(x+3)=0\n x=0 \vee x=-3$

describe two ways you could evaluate 37% of the sum of 27.6 and 15.9. tell witch method you would use and why

Answers

The percentage of 37% of the sum of the numbers 27.6 and 15.9 will be

What is the percentage?

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

The first method →

Find the sum of two numbers,

27.6 + 15.9 = 43.5

37% of 43.5 will be as,

0.37 x 43.5 = 16.095

The second method →

Find the 37% of 27.6 as

0.37 x 27.6 = 10.212

Find the 37% of 15.9 as

0.37 x 15.9 = 5.883

Add both numbers as

10.212 + 5.883 = 16.095

The easiest method is method 1 because it is fewer in steps.

Hence "The percentage of 37% of the sum of the numbers 27.6 and 15.9 will be 16.095.

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You could substract or divide It to get the sum.

What is the sum of 15 and it's additive inverse

Answers

The sum of 15 and it's additive inverse is 0.

What is additive inverse?

If the sum of two number is 0. Then the numbers are called additive inverse of each other.

Let the additive inverse be $x$

Therefore $x+15=0$

⇒ $x=-15$

Hence we can conclude that $-15$ is correct answer.

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The opposite of a number. For example, the additive inverse of 12 is –12. The additive inverse of –3 is 3. Formally, the additive inverse of x is –x. Note: The sum of a number and its additive inverse is 0. Hope i helped :)

Can someone pls help