Homework Help: Algebra 1

Posted by Deb on Sunday, January 15, 2012 at 8:54pm.

Please...I really need help with this story problem. HELP!

Marks pet needs to eat at least 18 grams of fiber but less than 25 grams of protein each day. Mark gives his dog Food A and Food B throughout the day. Food A has 2 grams of fiber and 3 grams of protein in each serving. Food B has 4 grams of fiber and 1 gram of protein for each serving.
a. Write a system of inequalities that determine the maximum and minimum amount of each food Mark can give his pet each day. Will the amount of Food A or B ever be negative? Please account for this in your system of inequalities.
b. Give three solutions that would solve Marks pet needs. Show that each solution works.

Algebra 1 - Anonymous, Sunday, January 15, 2012 at 9:38pm
2A+4B>18
3A+1B < 25
A>0
B>0

(A,B) = (1,5) …2(1)+4(5)>18 and 3(1)+1(5) < 25
(A,B) = (2,5) …2(2)+4(5)>18 and 3(2)+1(5) < 25
(A,B) = (3,5) …2(3)+4(5)>18 and 3(3)+1(5) < 25
Algebra 1 - Mrs. Guest-Johnson, Friday, January 20, 2012 at 2:44am
If you copy and paste this solution, you will earn a 0 for plagiarism. Do your own work. Solve it a different way.
Algebra 1 - Mrs. Guest-Johnson, Friday, January 20, 2012 at 2:48am
If you copy and paste this solution, you will earn a 0 for plagiarism. Do your own work. Solve it a different way.

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