3 years ago

Explain why you should record a 1 in the Tens column when you regroup in an addition problem

Mathematics

1 answer:

Fed [463]3 years ago

4 0

I would say that if the ones add up to 10 or more, they will regroup and put a 1 above the tens column to show the 10

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(08.05)

Readme [11.4K]

The mistake is in step 3:

I: −2m =−12 − 2n
II: 2m = 8 + 8n

the student set both right sides of the equations equal (−12 − 2n = 8 + 8n), but the left sides aren't equal: first equation has -2m, second has +2m so the signs of one of the equations must be inverted first

5 0

3 years ago

Find the solution set for the following equation. <img src="https://tex.z-dn.net/?f=-%5Csqrt%28x%29%3D5" id="TexFormula1" title=

andrey2020 [161]

Answer:

Solution set = {25}

Step-by-step explanation:

=> $-\sqrt{x} =5$