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NeTakaya
3 years ago
5

When is estimation is an effective way to determine an answer

Mathematics
2 answers:
luda_lava [24]3 years ago
6 0
Estimation is never an effective way to get the answer. But it's always an effective way to determine whether the answer you calculated is reasonable, or from orbit by way of left field.
siniylev [52]3 years ago
4 0

The <em><u>correct answer</u></em> is:

Estimation is an effective way to determine an answer if we do not need an exact answer.

Explanation:

Estimation does not give us an exact answer. It gets us close to the exact answer, but it is not precise. This means we should use estimation to either check our work, or when we do not need a precise answer.

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Shawna took a test that had a total of 20 items. She got 4/5 of the items correct. How many items did she get correct?
ehidna [41]

Shawna got 16 items correct

Step-by-step explanation:

To find the percentage of answers or part of total answers we multiply the fraction with the total number of items.

Given

Total items on test = 20

Correct items fraction = 4/5

Then,

Correct\ items=\total\ items * \fraction\ of\ correct\ answers\\= 20 * \frac{4}{5}\\=\frac{80}{5}\\=16

Shawna got 16 items correct

Keywords: Percentage, fractions

Learn more about fractions at:

  • brainly.com/question/7419893
  • brainly.com/question/730852

#LearnwithBrainly

4 0
3 years ago
How many months old is Paula?
oksano4ka [1.4K]

Answer:

we cant just tell that. we need numbers. and problems.

Step-by-step explanation:

8 1
3 years ago
1)bir üçgenin kenar uzunlukları 2,3ve4 ile ters orantılıdır.üçgenin çevresi 39 cm olduğuna göre en uzun kenarı kaç cmdir?
goldenfox [79]
1. 
The edge lengths of a triangle are inversely proportional to 2,3 and 4.
The actual proportions of the lengths are then
12(1/2:1/3:1/4)=6:4:3
The longest side 
= 39* (6/(6+4+3)
= 39*6/13
=18

2. 63 breads : 35 kg flour
is the same as 
54 breads : x kg flour
Cross multiply and get
x=54*35/63=30
30 kg of flour are needed to make 54 breads.
3 0
3 years ago
G(x) = -3х (х^2– 36) (х – 6)<br> Find all real zeros of the function
Daniel [21]
Aren’t there only 2? Because of the squared exponent? I’m not fully sure
6 0
3 years ago
Answers: A, B, C, D please answer right
soldier1979 [14.2K]

Answer:

Triangle C

Step-by-step explanation:

Because triangle C is in the same orientation, meaning it was not flipped, it is a simple translation.

3 0
2 years ago
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