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nine times a number more than 8 = 12. What is the number?

Sagot :

Answer:

189

Step-by-step explanation:

Answer:

[tex]\boxed{\bold{\frac{4}{9}}}[/tex]

Step-by-step explanation:

The first thing to do is putting this in an equation.

Nine times a number more than 8 = 12.

Since we do not know the number, and we are finding it, we will input it's place as "[tex]n[/tex]" Then the equation would be:

[tex]9 n +8 =12[/tex]

Now, we have found the equation. What's left is to solve.

Solve

[tex]9 n +8 =12[/tex]

Step 1: Subtract 8 from both sides

[tex]9 n +8 =12\\:\:\:\:\:-8\:\:-8[/tex]

8 - 8 = 0, so canceled. 12 - 8 = 4, so:

[tex]9n=4[/tex]

Step 2: Divide both sides by 9

[tex]\frac{9n}{9} = \frac{4}{9}[/tex]

Since 4 cannot go into 9, we will leave the fraction as is.

Therefore, the number is [tex]\bold{\frac{4}{9}}[/tex]

You can check by plugging in the number to the equation we found and calculate it.