Question

Nari says, "The sum of 10 and one-third of a number is 25." She uses the bar model to write an equation to represent her

Answer 1

Answer:

Nari says, “The sum of 10 and one-third of a number is 25.” She uses the bar model to write an equation to represent her statement.

A bar diagram. The top box contains 25. The bottom boxes contain 10 and one-third n.

Which equation can Nari write using the bar model?

25 = 10 + one-third n

10 = one-third n + 25

25 = 10 minus one-third

10 = one-third n minus 25

Step-by-step explanation:

Answer 2

Answer:

$25=10+\frac{1}{3}n$.

Step-by-step explanation:

It is given that the sum of 10 and one-third of a number  is 25.

Let as consider n be the unknown number.

One-third of a number $=\frac{1}{3}n$

Sum of 10 and one-third of a number $=10+\frac{1}{3}n$

The sum of 10 and one-third of a number  is 25. It can be written as

$25=10+\frac{1}{3}n$

Therefore, the required equation is $25=10+\frac{1}{3}n$.