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Cerrena [4.2K]
3 years ago
15

Show how to make a ten to find 12-4. Write the number sentence

Mathematics
2 answers:
aliya0001 [1]3 years ago
7 0
Subtract 2 from 12. 12-2 is 10. You can subtract 10 with 4, and then add 2. (10-4)+2=8.
Mariana [72]3 years ago
7 0

Answer:

Making tens is an strategy to help student to subtract using this number.

So, we could subtract 12-2 = 10. Now, to fins 12-4, we have to also find the way to transform the ten into 8, because 12-4=8. So, basically, by subtracting 2 units one more time we can get the 8 or 12-4; 10-2=8, and 12-4=8, therefore 10-2=12-4, which is true because 8=8.

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A group of people consumes an amount of protein equal to the estimated average requirement for their population group. What perc
liubo4ka [24]

Answer:

50%

Step-by-step explanation:

This is essentially not a math question buth rather one of dietary reference and recommendeations. FAO gives the Estimated Average Requirement(EAR), as 0.5(50%). This figure is defined as the intake at which there's risk of inadequacy to an individual.

*View link below for more comprehensive information.

https://www.ncbi.nlm.nih.gov/books/NBK114332/

4 0
3 years ago
The variables x and y vary inversely. Use the given values to write an equation relating x and y. Then find y when x=−3.
-BARSIC- [3]

Answer:

xy-3x=40, x=5

x(y-3)=40

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6 0
3 years ago
(Please someone help me!) (No links!)
jonny [76]

Answer:

70% are propane grills.

Step-by-step explanation:

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10 + 5 = 15

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50 - 15 = 35

Then we will divide the amount of propane grills by the total amount

35 / 50 = 0.7

And multiply that by 100 to get our percentage.

0.7 * 100 = 70

8 0
3 years ago
Sam's test scores increase proportionally by 5 points for each hour she spends studying. How many points would her score increas
Semenov [28]
If she studied for 2.3 she would have a total of 11.5 because if she got 5 points per hour you just have to multiply it the number of hours she spent studying. So 2.3 x 5 = 11.5! :-)
4 0
3 years ago
Read 2 more answers
If two angles are adjacent then they share a common vertex. What can you conclude from the given true statement
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