The ratio of green food coloring to blue food coloring is 1:2. If we use 6 drops of blue, how many drops of green will we need?
1 answer:
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divide total paid by number of pencils for price of 1 pencil
4.50 / 18 = 0.25 for 1
so you would put a dot at (1, 0.25) (2,0.5) (3,0.75) etc and draw a line through the dots
see attached picture:
