SOLUTION: when 48 is divided by sum of 5 and a certain number the result is 3 what is the number

Algebra.Com
Question 1108593: when 48 is divided by sum of 5 and a certain number the result is 3 what is the number
Found 2 solutions by ikleyn, asymptote:
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.
First divide 48 by 3.

Then think.


Answer by asymptote(2)   (Show Source): You can put this solution on YOUR website!
Let's first turn this into an equation. We are told 48 divided by the sum of 5 and a certain number we will call x equals three. This gives:

From here, we just need to isolate and solve for x. This is done as follows:
1) Multiply by both sides to get it out of the denominator:

2) Distribute the three to the binomial:

3) Subtract 15 from both sides:

4) Divide both sides by 3:

Finally verify we are correct by dividing 48 by 16 (the sum of 5 and x, our solution) to get 3.

RELATED QUESTIONS

when 48 is divided by the sum of 5 and a certain number the result is 3 what is the... (answered by Killjoy club,MathTherapy)
When i divided 48 by the sum of 5 and a certain number,the result is 3.what is the... (answered by josgarithmetic,ikleyn)
When the sum of a number and 5 is divided by 2, the result is 11. What is the... (answered by showe9)
When 3 is divided by the sum of 8 and a certain number, the result is equal to the... (answered by ikleyn)
a certain number is multiplied by 5 and then 13 is added. the result is 48. what is the... (answered by geetha_rama)
The sum of 42 and a certain number is divided by 4.The result is twice the number.Find... (answered by rfer)
A number is divided by 3. 5 is added to the quotient. When the sum is multiplied by 2,... (answered by richwmiller)
45 is added to a certain number and this sum is divided by two. the final result is 5... (answered by kevwill)
When I add 45 to a certain number and dived the sum by 2 the result is divided by 2 the... (answered by ikleyn,josgarithmetic)