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Reika [66]
3 years ago
11

Explain why you can use subtraction to solve a division problem

Mathematics
1 answer:
rusak2 [61]3 years ago
7 0
If I understand your question clearly, the reason why you can use subtraction in a division problem is that, in order for you to find out what a remainder or mixed number is, you need to subtract. 

Example: Tamira has 60 bags of cookies to give out at her local community center, each person receives 5 cookies in a bag, how many people got a bag of cookies? Is there a remainder left?

So, after reading that problem, you already know you need to divide.


 5 )‾‾60‾‾‾‾   

How many times can 5 go into 6? 1 time. So, you put the 1 over the 6.

      1
5 )‾60‾‾‾‾‾‾
   -  5 
↓ 
 ______
     1 0

How many times can 5 go into 10? 2 times.

     12
5)‾‾60‾‾‾
     -5↓
_________
      10
     -10
  _______
        0

So, Tamira gave 12 people cookies with no remainder. And for when you need to find out the mixed number, it's the same process, but you go in the order of: quotient, remainder, dividend.

I hope I helped :)
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Solve equation show all steps what 2x-3x+5=18
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Let's solve your equation step-by-step.

2x-3x+5=18

Step 1: Simplify both sides of the equation.

2x-3x+5=18\\2x + -3x + 5 = 18

( 2x + -3x ) + ( 5) = 18 (Combine Like Terms)

-x + 5 = 18\\-x + 5 = 18

Step 2: Subtract 5 from both sides.

-x + 5 - 5 = 18 - 5 \\-x = 13

Step 3: Divide both sides by -1.

\frac{-x}{-1} = \frac{13}{-1} \\x = -13

Answer : \boxed {x = -13}

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Have a great day/night!

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