Search over 10,000 free study notes

The perimeter of the rectangle can be found using 3x+6+3x+6+2x-5+2x-5=10x+2We know from the question the perimeter equals 22cm.10x+2=22We can subtract 2 from both sides10x=20Divide through by 10 and we ge...

we would draw a tree diagram to show this.
4 consecutive days means everyday except friday, or everyday except monday.
this would be 2(0.3x0.3x0.3x0.3x0.7)

1. Turn x-y=6 into y=6+x.2) Insert y=6+x into 2x+y=18; get 2x+6+x=183) Turn the latter equation into 3x=18- 6=124) Divide 12 by 3 to get x=45) Insert x=4 into y=6+x into y=106) Conclude with x=4 and y=...

(i) To find the gradient of a straight light, we take any two (different) points on the straight line and compute the change in Y divided by the change in X. So here this is; (21-3)/(9-0) = 18/9 = 2. So t...

Start by selecting a variable to eliminate from the equations. --> Select x in this case.Take the second equation and multiply by 2. --> 2x + 6y = 38Subtract the first equation from this answer. --&...