Question

Allison has painted a large muffin sale sign to display at the table. Chris wants to pay more signs Allison made purple paint by mixing three parts red paint with four parts blue paint. Chris has two fluid ounces of blue paint. To match Allisons shade of purple, how much red painted Chris mix with his blue paint?

Answer 1

Given:

Allison made purple paint by mixing 3 parts red paint with 4 parts blue paint.

So, the ratio to made a purple paint = red : blue = 3 : 4

Chris has two fluid ounces of blue paint.

We need to match Allison's shade of purple

So, we will find how much red-painted should Chris mix with his blue paint.

We will solve by the ratio and proportions as follows:

Red : Blue

3 : 4

x : 2

Where (x) is the number of fluid ounces of red-painted.

Using the cross product, the value of (x) will be as follows:

`x=(2*3)/(4)=1.5`

So, the answer will be:

Chris needs 1.5 fluid ounces of red.