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2 years ago

45% of a number is 180. Find the number

Mathematics

2 answers:

masha68 [24]2 years ago

8 0

Answer:

x = 400

Step-by-step explanation:

45% x X = 180

45/100 x X = 180

x = 180 x 100/45

x = 400

KonstantinChe [14]2 years ago

4 0

Answer:

Step-by-step explanation:

The term "of" can be translated to multiplication in problems like this.

So it's essentially saying multiply 45% to 180 and give me the result.

45% can be written as 45/100 in fractions (45 percent, where cent means 100 and per means division). 45/100 can be written as 0.45 in decimal form.

Now the problem reads 0.45 X 180. Using a calculator, we can solve this and the result comes out to be 81

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skelet666 [1.2K]

The equation to find Amy's earning after tutoring for 15 hours is 300 dollars.

<h3>How to find an equation?</h3>

She earn 20 dollars for each hours she tutors.

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1 year ago

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Find the area of a triangle formed by placing the vectors [3, 6] and [7, 1] tail-to-tail.

Usimov [2.4K]

Answer:

a. $A=10u^{2}$

b. View graph

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Step-by-step explanation:

knowing that the triangle area is equal to base by heigh between two, then:

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