Cathy uses 9.1 pints of blue paint and white paint to paint her bedroom walls. 1 4 of this amount is blue paint, and the rest is white paint. How many pints of white paint did she use to paint her bedroom walls?

She used 6.825 pints of withe paint to paint her bedroom walls

Step-by-step explanation:

We know Cathy used 9.1 pints of paint and 1/4 is blue.

first we have to calculate the white paint, we are going to calculate it by subtracting 1/4 of the total paint

1 - 1/4 = 4/4 - 1/4 = 3/4

Now that we know that 3/4 of the total paint is white, we have to multiply it by the amount of paint so we get how many pints of paint are white

3/4 * 9.1 = 6.825

She used 6.825 pints of withe paint to paint her bedroom walls