x = 6k + 13
9.50*0.5*3.5
4a+9b+1/2b=180
a cycing race is x km long a compertive in the race has cycled 9km but still has more then 43km left to cycle to complete the race...
7. With the use of a calculator, find the value of each of the following, giving your answer in standard form, correct to 3 signif...
3y^2+19y+6
4a+9b+1/2b=270
1.8รท44.47
Of the families in a village, 70% have dogs and 45% have dogs and cats.
Of the families in this village, 18% have neither a dog, ...
Find the value of x when y = 5, if x varies directly as 4y-1 and x = 14 when y = 2.
