ratio, proportion and rates of change

Description

GCSE Maths (ratio, proportion and rates of change) Flashcards on ratio, proportion and rates of change, created by lizabeth rawson on 01/03/2020.
lizabeth rawson
Flashcards by lizabeth rawson, updated more than 1 year ago
lizabeth rawson
Created by lizabeth rawson about 4 years ago
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Resource summary

Question Answer
simplify 2.4 : 3.6 2 : 3
what does direct proportion mean if one of the things increase if the other increases, if one doubles, the other doubles
what does inverse proportion mean if one is halved, the other is doubles
write an equation for y being inversely proportional to the cube root of x y = ∛x
what is the equation for % change change / original x 100
what is the formula for compound growth and decay amount after days/hours etc = initial amount x (multiplier)* number of days/hours etc
1 yard = _ feet 1 gallon = _pints 1 stone = _ pounds 1 pound = _ ounces 1 foot = _ inches 3, 8, 14, 16, 12
1cm = _mm 1m = _cm 1km = _ m 1kg = _ g 10, 100, 1000, 1000
1 tonne = _ kg 1 litre = _ ml 1 litre = _ cm³ 1cm³ = _ ml 1000, 1000, 1000, 1
speed = distance / time
density = mass / volume
pressure = force / area
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