a community hall is in a shape of a cuboid. the hall is 40 m long 15 m wide and 3 m high. the community halls needs re-decorating with new paints for the wall and ceiling and new tiles on the floor. a 10litre tin of paint covers 25 m^2 and cost £10. 1m^2 floor tiles cost £3 each.

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

i’m kinda new to precal but your answer should be 21. hope i got it right.

step-by-step explanation: