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2 years ago

Whoch expression is equivalent to -20 - (-4)

Mathematics

2 answers:

dangina [55]2 years ago

5 0

Answer:

Step-by-step explanation:

-(-4)=+4

so it is -20+4

Setler [38]2 years ago

4 0

Answer:

D) -20 + 4 is the answer.

Step-by-step explanation:

1) Record the terms .

$4 - 20$

2) Use this rule: a - b = -(b - a)

$- (20 - 4)$

3) Use algorithm method.

(see the attached picture)

4) After simplifying, we have:

$-(20 - 4) = - 16$

5) therefor, -20 + 4 = -16

$- 16$

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2 years ago

A right triangle has legs of 5 ft and 6 ft. What is the length of the hypotenuse? _____ ft.

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3 years ago

Read 2 more answers

Convert 5 1/8 to a fractional notation

nataly862011 [7]

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3 years ago

Two years ago, Sally had 5,000 dogs in her dog shelter. Now she has 24,575 dogs. What is the

vodomira [7]

Two years ago, Sally had 5,000 dogs in her dog shelter. Now she has 24,575 dogs. The rate of change is 391.5 % increase

<em><u>Solution:</u></em>

Given that Two years ago, Sally had 5,000 dogs in her dog shelter

Now she has 24,575 dogs

To find: rate of change

A rate of change is a rate that describes how one quantity changes in relation to another quantity

<h3><u>Steps to follow:</u></h3>

First: work out the difference (increase) between the two numbers you are comparing.

Increase = New Number - Original Number.

Then: divide the increase by the original number and multiply the answer by 100.

% change = Increase ÷ Original Number x 100

$\text {rate of change }=\frac{\text { new value }-\text {original value}}{\text {original value}} \times 100$

$\begin{array}{l}{\text { rate of change }=\frac{24,575-5000}{5000} \times 100} \\\\ {\text { rate of change }=\frac{19575}{5000} \times 100=391.5}\end{array}$

Thus the rate of change is 391.5 % increase

5 0

2 years ago

Whoch expression is equivalent to -20 - (-4)​

Whoch expression is equivalent to -20 - (-4)