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ELEN [110]
3 years ago
8

here a subtraction problem that has been solved incorrectly for 21-9=11 choose the addition sentence that check this subtraction

problem what is the answer​
Mathematics
1 answer:
vitfil [10]3 years ago
6 0

Answer:

21-9 = 12

Step-by-step explanation:

I don't know if this is the correct sentence you are looking for though but i hope it helps

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Step-by-step explanation:

Since, In the first case original amount = 45

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In second case original amount = 75

So the decreasing percentage when the original amount decreases to 45,

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Also, The original amount of the present increase is different from the original amount for the persons decrease. ( Because, 75\neq 45

Therefore, Option B and F is correct only.



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<h3>What is a triangle?</h3>

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If in ΔNOP, OP = 7, PN = 13, and NO = 19, then the measure of the angles must be different as well;

Hence the statement that must be true about the angles is that the angles must be acute and all the measured angles must be different. The given triangle must also be a scalene triangle

Learn more on triangles here: brainly.com/question/2938476

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