Solve for .
2.
(100+30x)
30.rº

x = 1

Step-by-step explanation:

As you can see, the two angles are supplementary as they lie on the same straight line so they should add up to 180°.

100 + 30x + 30x = 180

Evaluate like terms.

60x + 100 = 180

Isolate 60x.

60x = 180 - 100

       = 80

Find x.

x = 80 ÷ 60

x = 1

answer: the resulting cross section is a rectangle. solution: a plane parallel to the base of a triangular prism will intersect a cross section that is the same shape as its bases. so the cross section is a triangle.

step-by-step explanation:

d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.