2
(2m + 50 cm)*6 = 2.5m*6 = 15 metres.
40 cm / 2m = 40 cm / 200 cm = 40/200 = 1/5
5m = 2m - 153m = -15m = -15/3m = -5
4 000 000 000 000 + 8.0 x 10 ^18so:8,000,004,000,000,000,000
7m-2m = 5
2m-5=17 +5=+5 ___ 22 Therefore, 2m = 22 22 / 2 = 11 m = 11
2m + 5 = 10 Therefore, 2m = 5 m = 5/2 m = 2.5
7-2m
(15/m) - m + 8 = 1015/m - m = 215 - m2 - 2m = 0 or m2 +2m - 15 = 0This factoises as (m +5)( m - 3), so m = 3 or -5
2
(2m + 50 cm)*6 = 2.5m*6 = 15 metres.
40 cm / 2m = 40 cm / 200 cm = 40/200 = 1/5
5m = 2m - 153m = -15m = -15/3m = -5
-1.0499999999999998
4 000 000 000 000 + 8.0 x 10 ^18so:8,000,004,000,000,000,000
0.2