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2 years ago

How do you use percents to solve problems?

Mathematics

1 answer:

nataly862011 [7]2 years ago

8 0

Covert the problem into and equation using formulas

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If there are 7,674,000,000 people in the world and 80,000 of them have a Reh, what is the probability at least one person has a

9966 [12]

Answer:

its not 80k/3000 someone answer

Step-by-step explanation:

3 0

3 years ago

A 100-foot rope from the top of a tree house to the ground forms a 45∘ angle of elevation from the ground. How high is the top o

DochEvi [55]

Answer:

The height of tree house is 70.71 feet

Step-by-step explanation:

We are given that A 100-foot rope from the top of a tree house to the ground forms a 45∘ angle of elevation from the ground

Refer the attached figure

Length of rope AC = Hypotenuse =100 feet

The top of a tree house to the ground forms a 45∘ angle of elevation from the ground = $\angle ACB = 45^{\circ}$

We are supposed to find the height of tree house i.e.AB = Perpendicular

So, Using trigonometric ratio

$Sin \theta = \frac{perpendicular}{Hypotenuse}\\Sin 45= \frac{AB}{AC}\\\frac{1}{\sqrt{2}}=\frac{AB}{100}\\100 \times \frac{1}{\sqrt{2}}=AB\\70.71=AB$

Hence The height of tree house is 70.71 feet

8 0

3 years ago

Please answer correctly

Scrat [10]

I think it’s 55.6 square inches

Sorry if I’m wrong! :)

5 0

2 years ago

Evaluate y5 + x(-7)<br> When x = 2, y = -5

Ymorist [56]

Answer:

Step-by-step explanation:

OK, first we turn the variables into into the actual values:

The equation will look like this:

(2)5 + (-5)(-7)

Now its easier to solve! Lets solve (2)5!

2 * 5 = 10

The equation looks like:

10 + (-5)(-7)

We will also solve (-5)(-7). Remember that a negative number times a negative number is positive!

-5 * -7 = 35

Lets finish the rest:

10 + 35 = 45.

Hope this is correct and have a nice day!

3 0

3 years ago

Find 64% of 25. Use a fraction. 2. 14 15 16

mr Goodwill [35]

Hey person hope you have a great day and download Socratic in the App Store it will really help you

5 0

2 years ago

Read 2 more answers