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3 years ago

81 is 18% of what number?

1 answer:

7 0

The answer is: 450
First we need to see if we need to find the percent, part, or whole. In this case its the whole.
First, you set up a proportion: 18/100 = 81/x
Next, you cross multiply: 18x(8100)
Then, you divide: 8100÷18 = 450
So 450 is your answer.
Hope this helps! :D

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Louise sold 873 copies of a book she wrote for $10.99 each. If she earns 52% profit from each book, about how much profit will s

Zepler [3.9K]

Answer:

Step-by-step explanation:

873*10.99=9594.27

9594.27*52%=4989.02 so about $5000.00

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3 years ago

Read 2 more answers

Dawn comma Sergio comma Tyrone comma and Jim have all been invited to a dinner party. They arrive randomly and each person arriv

professor190 [17]

Answer:

a. 24

b. 2

c. 0.0833 = 8.33%

Step-by-step explanation:

The first "slot" of person to arrive has 4 possibilities, then the second "slot" will have 3 possibilities, as one has already arrived, then the third "slot" has 2 possibilities, and the fourth "slot" has just 1 possibility.

So, multiplying all these combinations, we have 4*3*2*1 = 24 possible ways they can arrive

If the first and the last person are already "locked", we just have possibilities for the second and third person. The second will have 2 possibilities (Sergio or Tyrone), and the third will have only 1 (the person that wasn't the second between Sergio and Tyrone). So, the number of possibilities is 2*1 = 2

If we have 2 cases where Dawn is first and Jim is last, from a total of 24 possible cases, the probability is 2/24 = 1/12 = 0.0833 = 8.33%

3 0

3 years ago

Describe the connections between unit rates, proportions, and rate tables.

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They're all used for differentiating types of measurement in mathematics and science.

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3 years ago

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At the gas station, each liter of gas costs $3 but there's a promotion that for every beverage you purchase you save $0.20 on ga

k0ka [10]

Answer:

yes

Step-by-step explanation:

as the more you spend the more u save

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3 years ago

ron wants to build a ramp with a length of 14 ft and an angle of elevation of 26° the height of the ramp is about 6.1 ft. what i

Bezzdna [24]

Answer:

12.58 feet.

Step-by-step explanation:

Ron wants to build a 14 ft. ramp with an angle of the rise of 26° and the height of the ramp is about 6.1 ft.

We have to find out the length of the base of the ramp.

Now, the ramp forms a right triangle with the base and the height and here, the hypotenuse of the triangle is the ramp itself i.e. 14 ft.

If the base length is x feet, then we can write using the trigonometry

$\cos 26^{\circ} = \frac{\textrm{Base}}{\textrm {Hypotenuse}} = \frac{x}{14}$

⇒ x = 14 cos 26° = 12.58 feet. (Answer)

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3 years ago