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iVinArrow [24]
3 years ago
12

What number is 15% of 80? use percent proportions

Mathematics
1 answer:
vova2212 [387]3 years ago
8 0
!5% is equivalent to 15 parts over the whole 100 part. It is written in proportions as 15/100. 

Similarly, you need to find how many parts in 80 are equivalent to 15%or 15/100. So, just equate both equation with x as an unknown.

x/80 = 15/100
x = (15/100)*80
x = 12

Thus, the 15% of 80 is 12.
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In a recent survey, 40 percent indicated chocolate was their favorite flavor of ice cream. Suppose we select a sample of twelve
worty [1.4K]

Answer:

4 people name chocolate

Step-by-step explanation:

Let's first understand the given information.

The survey shows that 40 percent of a finite number of people name chocolate as their favorite flavor of ice cream. Because the survey is reporting a percentage, then 40% means that from 100 people 40 people name chocolate, while the others name a different type of flavor.

Dividing the total of people (100) by the ones who name chocolate (40) then we have:

100/40 = 2.5

Through the above equation we are actually expressing the following:

Total people = 2.5 * (people who name chocolate flavor)

Using this equation if we have now 12 people:

12 = 2.5 * (people who name chocolate flavor)

12/2.5 = (people who name chocolate flavor)

4.8 = people who chose chocolate flavor

Because we can't have 0.8 of a person, then if we have a sample of 12 people, we will expect that 4 of them name chocolate.

5 0
3 years ago
Find the value of x<br> !!!
Marta_Voda [28]

Answer: <em>In the upper triangle  x = 33° and in the lower triangle x = 128°</em>

Step-by-step explanation:

<em><u>Upper triangle: </u></em>

<em>x = (180° - 114°) ÷ 2 = 33°</em>

<em><u>Lower triangle:</u></em>

<em>x = 180° - 26° × 2 = 128°</em>

3 0
3 years ago
Line AB contains points A (−6, 3) and B (2, −5). Line AB has a slope that is?????
vladimir1956 [14]
The slope is 1

Difference between the first and second y is 8
Difference between the first and second x is also 8

(8,8) simplifies to 1

Hope this helps!

Please crown;)
4 0
3 years ago
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Answer:

B.Dining out

Step-by-step explanation:

<u>I hope the below question is the full one that you want to ask</u>

<em>Select the correct answer. Zara is six months into her first job, and she’s also attending community college. She is planning to start saving a portion of her paycheck and has created a monthly budget to track her spending. Which budget item should Zara reduce to increase her savings? A. college tuition B. dining out C. rent D. utility bills</em>

<em />

I think it is B: dinning out.

Because A C D are fixed cost, she could not adjust or change by herself. She can only save money when she cooks, do not need to go out for food.

4 0
3 years ago
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Answer:

A and B are the correct answers

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