January 25, 2015

Homework Help: PROPORTIONS

Posted by Kiki on Monday, November 17, 2008 at 9:56pm.

Here is the question:

"To make a pancake mix, add 1/2 cup of sugar, 3 cups of flour, 1 cup of powdered milk, 1 teaspoon baking powder and 1/2 teaspoon salt. Assuming the volume of the baking powder and salt are negligible, how much flour will be needed to make 50 cups of the dry mix?"

We are doing proportions, which is:

a= c
b d

***The units of A&C have to be the same and B&D also.

I got this far in the problem while doing it::::

x (cups of flour) = ???
________________ = _________
50 cups of flour 3 cups of flour

for the top ?? do I put all the dry ingredients listed in the question asked? Because I don't think I do, because if I did so, then the outcome would be too large, wouldn't it?
And then it asks:

"List the ingredients to a favorite recipe. Triple the recipe."


"Now figure 1/3 the recipe. Try using fraction multiplication, then do the problem again using proportion method."

The recipe I chose was this::


1 pint of strawberries
1 pound of grapes
3 bananas
1 (8 oz) strawberry yogurt.

I'm really stupid.
So to triple the recipe that I write, I would times it by 3, correct?

But when it tells me to do 1/3 of the recipe I keep getting the tripled amount.
Am I doing something wrong?

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