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Anna [14]
3 years ago
5

When a number is increased by 2.8%, the result is 56. What is the original number to

Mathematics
1 answer:
Sever21 [200]3 years ago
6 0

Answer:

The original number was 54.5.

Step-by-step explanation:

If a number is increased by 2.8%, then it is 102.8% of it's original number.

In mathematics, "of" in virtually all cases means "multiplied by".

Therefore, we do the opposite:

1. Convert to a decimal.

102.8% = 1.028

2. Divide by the decimal.

56 \div 1.028 = 54.47

3. Round it to the nearest tenth.

54.47 rounds to 54.5.

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Answer:

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2 years ago
Beatrix ate 21 raisins. This represents 30% of the box of raisins. How many raisins were originally in the box?
leonid [27]
21/0.3= 70
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8 0
3 years ago
Which values are solutions to the inequality below <br> check all that apply
Anettt [7]

Answer:b and e are correct

Step-by-step explanation:

7 0
3 years ago
WILL GIVE A BRAINLEST FOR RIGHT ANSWER !!!
svlad2 [7]

Answer: Cluster sampling

Step-by-step explanation:

Cluster sampling is a type of sampling method . With cluster sampling, the observer splits the population into separate groups which are called as called clusters. After dividing the whole populations into clusters he select a simple random sample of clusters from the population. The observer conducts his analysis on data from the sampled clusters.

From the given statement we can see that the automobile is doing his analysis by selecting  three stores from each state (cluster) in the country  and surveys all customers present in the store in a certain week.

Hence, he used cluster sampling .

4 0
3 years ago
Read 2 more answers
Evaluate: 2a + 4b when a = 10 &amp; b = 6
Tcecarenko [31]

Answer: Option C: 44

Step-by-step explanation:

so, here we have the equation:

H(a,b) = 2a + 4b

"evaluate" means change the values of the variables for specific values, here we must replace the "a" for 10, and the "b" for a 6.

So we have:

H(10, 6) = 2*10 + 4*6 = 20 + 24 = 44

7 0
3 years ago
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