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Leto [7]
3 years ago
7

Explain how you use estimation to check the reasonableness of a solution to a practical problem.

Mathematics
2 answers:
miskamm [114]3 years ago
7 0

Answer:

Estimation is just giving a general answer to the situation and can be specified on specifics depending on the numbers used and whichever question it's asking. But also remember that whenever you estimate your answer will be an approximate answers, not an exact.


motikmotik3 years ago
4 0

Actually, here is the correct answer. The person above (but if I get brainliest, the person below) me didn't answer the question properly. He/she just talked about estimation not how you could use estimation to check the reasonableness of a solution to a practical problem.

Usually, when you try and solve a problem, you estimate first. After that, you actually solve the problem to get the exact answer. If your estimate was close to your answer, it probably means that your answer is correct. For example, take a look at this problem: Miguel must always have at least $500 in his bank savings account to avoid a fee charged by the bank. He has $764 in the account. He wants to withdraw $278 from the account. Miguel believes that he will not be charged a fee if he makes this withdrawal. Estimate with lower or upper bound estimate to see if he is correct. Notice that the problem uses the word “at least”. These words tell you to find a lower bound estimate. Miguel’s balance can never be less than 500 dollars. The lower bound estimate in subtraction is the result of rounding the minuend down and the subtrahend up. If the lower bound estimate is equal to, or less than five hundred dollars then Miguel may risk having an actual balance less than five hundred dollars after the withdraw. The lower bound estimate equals four hundred dollars. Since the estimate is less than five hundred dollars, Miguel’s balance could drop below five hundred dollars if he withdraws two hundred seventy-eight dollars. So Miguel should re-think his conclusion. In fact if he withdraws two hundred seventy eight dollars his actual balance would be four hundred eighty-six dollars. So he would be charged a fee.

I turned this in and got 100% on K12. It was for my math journal. I didn't copy. Search it on a plagiarism website if you think I did.

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sveta [45]

Step-by-step explanation:

<u>Calculate the gross earnings:</u>

  • 40*7.75 = 310.00

<u>Health insurance deduction:</u>

  • 310.00*15/100 = 46.50

<u>Pension deduction:</u>

  • 310.00*6.5/100 = 20.15

<u>Total deductions:</u>

  • 55.00 + 15.50 + 21.25 + 46.50 + 20.15 = 158.40

<u>Net pay:</u>

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3 0
2 years ago
The sum of three consecutive odd integers is 18
DIA [1.3K]

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Step-by-step explanation:

4 0
3 years ago
7) Simplify:<br> (3x)2<br> 3x3
Vsevolod [243]

Answer:

3x3

Step-by-step explanation:

3=3

3x3(1)

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8 0
3 years ago
Read 2 more answers
3. Reasoning Ben says that n = 5 is the solution of the equation 7n = 45. How can you check whether Ben is correct? ​
likoan [24]

Answer:

You cant, because Ben is WRONG, unless you made a typo while writing the question

Step-by-step explanation:

If you subsitute N for 5, then the equation would be 7 x 5 = 45. However, this is not true. The correct equation is 7 x 5 = 35, so Ben is wrong UNLESS you made a typo while writing the question.

Hope this helped! If it did, please mark it brainliest! It would help a lot! :D

6 0
3 years ago
Alison does 8 math problems in 2 minutes. How long will it take her to do a set of 160 problems?
erastovalidia [21]

Answer:

40 min

Step-by-step explanation:

find unit rateeee  p=problems

8 p= 2 min

8/2=4

so Alison can do 4 math problems per minute

so 160/4= 40 minutes

hope this helps

5 0
3 years ago
Read 2 more answers
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