To wash a window that is 4 meters off the ground, Darrell leans a 6-meter ladder against the side of the building. To reach the window, how far away from the building should Darrell place the base of the ladder? If necessary, round to the nearest tenth.

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1

2/3

step-by-step explanation:

x:       y:  

-1         4

0         4

1         6

2         18

3         20