50 cm in meters is 0.5 m
Area covered by a tile = 0.5 * 0.5 = 0.25 m^2
Total area for floor = 5 * 4 = 20 m^2
Tiles required = 20/0.25 = 80 tiles
If 10 tiles cost £7.50 then 1 tile = <span>£7.50/10
then 80 tiles = 7.50/10 * 80 = </span><span>£60.00</span>
Hello,
answer D (-2,3)
Indeed
y=4x+11
y=-2x-1
==>4x+11=-2x-1
==>6x=-12
==>x=-2
And y=4*(-2)+11=3
It is same because 0 does not matter
It is 17 if you do the math and do the multiples of 187 and 578
