Question

The sum of 10 and one third of a number is equal to 13 what is the number

Answer 1

the answer is 9.

10+x=13

subtract 10 from both sides.

x=3

since this is one third of the number we need to find,you do reverse operations.

multiply 3 by 3.

the answer is 9.

hope this helped. god bless. :D

Answer 2

The unknown number is 9

• Let the unknown number be x

• Sum of 10 and one-third of a number is expressed as 1/3x + 10

• If the result is equal to 13, hence 1/3 x  + 10 = 13

Solve the resulting function

1/3x = 13 - 10

1/3x = 3

Cross multiply

x = 3 * 3

x = 9

Hence the unknown number is 9

Learn more on word problems here: https://brainly.com/question/18473365