word problem

[rlphipps]

a bakery makes a special whole wheat bread using two kinds of flour:whole wheat and rye. the recipe for this bread calls for 1 oz of rye flour for every 4 oz of whole wheat flour how many ounces of each kind of flour should be used to make a loaf of bread weighing 32oz ?

 

[Mrspi]

a bakery makes a special whole wheat bread using two kinds of flour:whole wheat and rye. the recipe for this bread calls for 1 oz of rye flour for every 4 oz of whole wheat flour how many ounces of each kind of flour should be used to make a loaf of bread weighing 32oz ?

There are probably several ways to approach this problem. Here's one.

We could let r = ounces of rye flour needed for a loaf
Now, since the loaf weighs 32 oz in all, then 32 - r = ounces of whole wheat flour

We can set up a proportion:

rye/whole wheat = rye/whole wheat

1/4 = r / (32 - r)

Now, solve that proportion. The value of "r" is the number of ounces of rye flour you'll need. Don't forget that you're also asked for the amount of wheat flour...that will be (32 - r) ounces.