12.5 Quarts
Explanation:
It takes 4 cups to make a quart so 2.5 would equal 0.625 quart
Then you would take 0.625 x 20 which would then equal 12.5 Quarts
Answer:
7 small pillows.
Step-by-step explanation:
1. Let's get rid of the whole parts of fractions -> 1 3/4=7/4, 12 1/4=49/4
2. To find how many pillows she can make divide the available fabric by the amount needed -> (49/4)/(7/4)=49/7=7.
I would recommend "Introduction to Linear Algebra," by Gilbert Strang. It is a compact but very helpful textbook reference written by a well-known MIT professor. There is a corresponding online MIT course that is free, so that's a bonus. I am currently using it to study linear algebra with no class or previous experience, and I think it does a solid job of explaining things. Each section in the book has a set of questions for you to work through, and answers to selected questions appear in an appendix at the end of the book.
Hope this helps!
First you need to find the percent equivalent to that of the ratio. The ratio is 3:5. From there you would take the 3, and divide it by 5. 3/5=0.6. Apply that to the information that you are given: 8(0.6)=4.8.
(4-3n-5n2)
+( -2+n-3n2)
____________________
-2-2n-8n2
