Question

A painter paints 3 rooms in 7 hours. Express y in terms of x, where y is the number of hours the painter takes to paint x rooms.

Answer 1

Answer:

x = 3y/7 or y = 7x/3

Step-by-step explanation:

Painter paints 3 rooms in 7 hours.

For x rooms the painter takes

7x/3 hours

Now the painter takes 7x/3 hours to paint x rooms.

                                      y hours, painter can paint

yx/(7x/3) = 3y/7 rooms

If we say painter takes y hours to paint x rooms,

we can equate x = 3y/7.

x and y relation is x = 3y/7 or y = 7x/3

Answer 2

Answer:

y = 7x/3

Step-by-step explanation:

A painter paints 3 rooms in 7 hours. Express y in terms of x, where y is the number of hours the painter takes to paint x rooms.

3 rooms are painted in 7 hours

1 room is painted in 7/3 hrs

x room are painted in 7x/3 hrs

x rooms are painted in y hrs to express y in term of x

so

y = 7x/3

=> 3y = 7x