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wlad13 [49]
4 years ago
5

Describe the three basic uses of percentages. Give a sample statement that uses percentages in each of the three ways. What is o

ne way to use​ percentages?
Mathematics
1 answer:
nadezda [96]4 years ago
4 0
Percentages can be used for discounts in shops - 50% off cookies
For bank interest rates - 2.78% p.a.
Sales tax - $50 coffee maker and the sales tax is 8%
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a person driving along the road moves rates of 56 miles per hour driven.How far does the person drive in 1.5 hours?
tester [92]
56 miles : 1 hour
/2. /2
28 miles : 30 minutes
56+28. 1h+30m
84 miles : 1 hour 30 minutes

84 is the answer
8 0
3 years ago
Read 2 more answers
How much area does the goat have to move around in the barn round to the nearest hundredth (Use 3.14 for up)
PSYCHO15rus [73]
Hello,
A goat is on 15 for rope in the barn means that the radius is 15 feet.
Area of the circle=
πr^2

A=π×15^2
A=225π
A=706.5 square feet. As a result, 706.5 square feet is your final answer. Hope it help!
5 0
3 years ago
At barlow school 4/9 of the 873 students are boys at willow school 2/3 of the 630 students are girls which school has the greate
marishachu [46]

Answer:

There are 178 more boys in Barlow school as compared to Willow school.

Step-by-step explanation:

We are given the following in the question:

Barlow school:

Total number of students = 873

Number of boys =

=\dfrac{4}{9}\times 873 = 388

Willow school:

Total number of students = 630

Number of girls =

=\dfrac{2}{3}\times 630 = 420

Number of boys =

Total number of students - total number of girls

=630-420 = 210

Thus, Barlow school has greater number of boys than Willow school.

Difference between the number of boys =

=388-210\\=178

Thus, there are 178 more boys in Barlow school as compared to Willow school.

7 0
3 years ago
An English instructor asserted that​ students' test grades are directly proportional to the amount of time spent studying. Lisa
Nady [450]
\bf \begin{array}{ccll}
hours&score\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
9&72\\
h&95
\end{array}\implies \cfrac{9}{h}=\cfrac{72}{95}\implies \cfrac{9\cdot 95}{72}=h
5 0
3 years ago
The table shows your test results for math class. What test score do you need on the last exam to earn 90% of the total points?
Nady [450]

Answer:

262.6/300% for the first 3 test if you were to add another test it would be 400% total and you need 360% of test grades to have an average of 90% and so 360 - 262.6 = 97.4%

Step-by-step explanation:

4 0
3 years ago
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