Word Problems Chapter 7 Q4

[TonyS610]

A feed store sells two varieties of birdseed: brand A, which is 40% millet and 60% sunflower, and Brand B, which is 65% millet and 35% safflower. If a customer purchases a mix of the two types of birdseed that is 50% millet, what percent of the mix is Brand A?

I have no problem setting up a table for this question. Set Brand A to 100lbs giving you 40lbs millet 60lbs sun flower. This makes B .65X millet and .35X saffflower. i Then solved for X and got 1000/15. This is where i get stuck. Looked at the explanation in the book and I am confused how get 100/(100+1000/15). I must be missing something simple, thanks for the help.

As i was typing this i figured it out. not sure what i was thinking. 100 is the total of mixture A divided by the total of A+B giving you the % of Mixture A.

Time for another cup of coffee.

[RonPurewal]

so it's all good, then?

if you have any more questions please let us know. thanks.

[TonyS610]

All Good Thank You.

[tim]

Glad to hear it!

[RonPurewal]

All Good Thank You.

you're welcome.