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.
25
10
Which equation can Nari write using the bar model?
© 25 – 10+ jn
10-3n+25
25 = 10-3n
10-10-25

.

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

Sum of 10 and one-third of a number

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

Therefore, the required equation is .

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540