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Lyrx [107]
2 years ago
9

How does estimating an addition or subtraction problem help you know if an answer is reasonable?

Mathematics
1 answer:
kiruha [24]2 years ago
7 0

Answer:

It helps you know if the answer is reasonable because when you do the work and get your answer, you can check if it is close to your estimate, and if it is, it is most likely correct. On the other hand if it is not close to the estimate it is most likely wrong, unless you estimated incorrectly.

Step-by-step explanation:

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6(6x−3)= helpppppppppppppp distibutive property again
bagirrra123 [75]

Answer:

6(6x-3)

=36x-18

Step-by-step explanation:

6(6x-3(

multiply 6 x 6 and 6 x 3

36x - 18

5 0
3 years ago
Please help not sure if baby has any correct ​
Elodia [21]
So I think maybe the example for the first problem created some confusion, and you may want to have your child take another look.

If we numbered the top half 1 to 9 going from left to right, numbers 1, 2, 6, 7 and 8 are right. They worked because the top number (numerator) perfectly fit into the bottom number (denominator). This is not true for the rest.

The key is to find the largest number that you can think of that will go into BOTH the top and the bottom evenly.

So for number 3: 18/24; 18 does not fit evenly into 24. The highest number that will fit into both is 6, so you divide both top and bottom by 6 and your answer is 3/4.

Number 4: 45/54; the highest number that goes into both is 9, so you divide both top and bottom by 9 and your answer is 5/6.

Number 5: 55/66; the highest number that can go into both is 11, so the answer is 5/6.

Is this making sense?

The bottom, numbering 1 to 9 from left to right. The correct ones are 1, 6 and 9.

For 2: 14/41 is about 15/40. Both can be divided by 5, so the answer is 3/8.

For 3: 20/81 is about 20/80, and 2/8 is close, but can still be divided by 2, so the answer is 1/4.

For 4: 24/49 is closer to 25/50 than 20/50. 25/50 can be divided by 25, so the answer is 1/2.

For 5: it was all correct, but the answer can be further reduced from 2/8 to 1/4.

For 7: 23/72 is about 25/75, and 25 goes into both, so it reduces to 1/3.

For 8: 13/21 is about 15/20, and 5 goes into both, so the answer is 3/4.

As your child continues to learn this, remember that if he or she gets an answer like 2/6 or 6/12, they should ask themselves if they can further reduce the fractions- 2/6 reduces to 1/3, and 6/12reduces to 1/2. I know it's confusing, but they do get the hang of it with practice
5 0
3 years ago
I WILL GIVE BRAINLIEST TO THE RIGHT ANSWER
zhannawk [14.2K]
D 1/7 because only one chair is sort. Out of 7 only one person will have the short chair. 1/7 is the answer. trust me
3 0
3 years ago
The diameter of the base of right cone 12 cm . The total surface area of the cone is 306 cm^2
inn [45]
           A = πr² + πrl
  306.00 = 3.14(6)² + 3.14(6)(l)
  306.00 = 3.14(36) + 3.14(6l)
  306.00 = 113.04 + 18.84l
- 113.04  - 113.04
  192.96 = 18.84l
   18.84      18.84
    10.24 ≈ l
7 0
3 years ago
ANSWER THESE AND I WILL MARK BRAINLIEST
SSSSS [86.1K]
Can't read the question
3 0
2 years ago
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