Question

Chelsea uses 6.1 pints of white paint and blue paint to paint her bedroom walls 2/5 of this amount is white paint and the rest is blue paint how many pints of blue paint did she use to paint her bedroom wallsExpress my answer in fraction and decimal form

Answer 1

Fractions

Chelsea uses a total of 6.1 pints of white and blue paint for her bedroom walls.

It's given 2/5 of that amount is for white paint and the rest is for blue paint.

The sum of both fractions must be 1, since it represents the total amount of paint.

This means the fraction of blue paint can be obtained by subtracting 2/5 from 1:

`1-(2)/(5)=(5-2)/(5)=(3)/(5)`

The amount of blue paint used is:

`6.1\cdot(3)/(5)=(61)/(10)\cdot(3)/(5)=(183)/(50)`

Chelsea uses 183/50 = 3.66 pints of blue paint