rosie makes lemonade. she mixes soda water and lemon juice in the ratio 4:1. she has 480ml of soda water and 150ml of lemon juice. she wants to use all the lemon juice to make lemonade. work out how much more soda water she needs.

120ml

Step-by-step explanation:

Lemonade= Soda water : Lemon Juice

L= 4 : 1

L= 1 LJ = 150ml

150x4=600ml

600-480=120ml

She needs 120ml more soda water to use up all her lemon juice

y - y1 = m(x- x1)

y - (-5) = 2/3(x -0)

y + 5 = 2/3x

y = 2/3x - 5