On a picture the size of rectangular room is 5 cm by 7 cm. actually the shorter side of the room is 6m. what is the scale of a picture and how long is the longer side of the room?

To solve this problem you must apply the proccedure shown below:

1. You have that the dimensions of the picture in meters is:

2. As you can see, the shorter side of the picture is .

3. Then, if the shorter side of the room is , you can find the scale of the picture by dividing the shorter side of the room by the shorter side of the picture, as following:

or

4. Then, you can calculate the longer side of the room by multiplying by the longer side of the picture:

Therefore, the answer is: The scale of the picture is and the longer side of the room is .

since both sides equal, there are infinitely many olutions.

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.