Welcome to our community

Be a part of something great, join today!

[SOLVED] 307w.WLCA.C10 computations are linear???

karush

Well-known member
Jan 31, 2012
3,066
Screenshot 2021-01-17 at 8.26.26 PM.png
the matrix at the bottom is from eMH but thot this was the way to do it... maybe not!!!
 

Country Boy

Well-known member
MHB Math Helper
Jan 30, 2018
821
Do you understand what this table tells you and what you are asked to do?

Let x be the number of kg of raisins used, y the number of kg of peanuts, z the number of kg of chocolate. Then one batch of "Bulk" mix requires 7x+ 6y+ 2z, one batch of "standard' mix requires 6x+ 4y+ 5z, and one batch of "Fancy" mix requires 2x+5y+ 8z.

The bottom row shows the cost of each kg of raisins, peanuts, and chocolate. x kg of peanuts costs 255x, y kg of peanuts cost 4.65y, and z kg of chocolate cost 4.80z so one batch of "Bulk" mix cost 7(4.65y)+ 6(4.65y)+ 2(4.80z)
 

karush

Well-known member
Jan 31, 2012
3,066
ok I think in LA notation $ x_1, x_2, x_3$ is prefered for the matrix

why do you have y twice in 7(4.65y)+ 6(4.65y)+ 2(4.80z)
 

Country Boy

Well-known member
MHB Math Helper
Jan 30, 2018
821
That was a typo, of course.

It should be 7(2.55x)+ 6(4.65y)+ 2(4.80z).