1) The number of ice lollies sold, varies directly according to the temperature, T°C. When T= 20°C, the number of ice lollies sold is 300. a) Find an equation connecting N and T.

b) Find the number of ice lollies sold when T= 25°C.

c) Find T when N= 100.

2) The time, T hours, that it takes to drive from A to B varies inversely to the speed S km/h. When S= 50 km/h, T=2 hours.

a) Find an equation connecting S and T.

b) Find T when S=80.

c) Find S when T=1

3) A carton of Apple juice is in the shape of a cuboid with base x cm by 2x cm and height h cm. The carton has a volume of 300cm^3. Find the dimensions that give the minimum surface area of the carton and comment on your answer.

62.5 paisa

step-by-step explanation:

4000*70 = 280000

280000-(2000*90) = 100000

4000-2400 = 1600

100000/1600 = 62.5

( give brainliest)

pakistan's principal natural resources are arable land and water. about 25% of pakistan's agriculture accounts for about 21% [1] of gdp and employs about 43% of the labour force. in pakistan, the most agricultural province is punjab where wheat and cotton are the most grown.

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64