Question

How do you solve this?

Answer 1

Explanation:

a)

`(d)/(t) = (600)/(12)`

`(d)/(t) = 50`

`d = 50t`

b)

`(g)/(t) = (12)/(6)`

`(g)/(t) = 2`

`g = 2t`

c)

`(c)/(n) = (100)/(80)`

`(c)/(n) = (5)/(4)`

`c = (5)/(4) n`

d)

`(p)/(t) = (10000)/(500)`

`(p)/(t) = 20`

`p = 20t`

Answer 2

The rule linking the given variables is the "division rule"

a) d / t = 600/12 ∴ d = 50t

b) g / t = 12/6 ∴ g = 2t

c) $C / n = 100/80 ∴ $C = 1.25n

d) $P / t = 10,000/500 ∴ $P = 20t

Explanation:

The rule linking the given variables is the "division rule"

a) For every 12 hours, 600 km is covered ==>
`(d(km))/(t(hrs))` distance per time

b) Every 6 months, the calf grows 12 cm ==>
`(g(cm))/(time(months))` height per time

c) Every $100 can buy 80 litres of petrol ==>
`(C(dollars))/(n(litres))` Cost per litres

d) In every 500 tonnes, profit is $10,000 ==>
`(P(dollars))/(t(tonnes))` Profit per tonnes