Agroup of art students are painting a mural on a wall. the rectangular dimensions of (6x+7) by (8x+5) and they are planning the mural to be (x+4) by (2x+5). what is the area of the remaining wall after the mural has been painted?

The area of remaining wall after the mural has been painted is square units.

Step-by-step explanation:

If the dimensions of a rectangle are l and w, then area of rectangle is

The dimensions of wall are (6x+7) and (8x+5). So, the area of wall is

The dimensions of mural are (x+4) and (2x+5). So, the area of mural is

The area of remaining wall after the mural has been painted is

Therefore area of remaining wall after the mural has been painted is square units.

what? ?

what type of question is thiss

step-by-step explanation:

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6