For each 3 mm of coloured fabric Fiona uses to make her curtains, she also uses 1 cm of white fabric. Express the amount of white fabric to coloured fabric as a ratio in its simplest
form.

109 is the nearest whole number/final answer! : )

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.