1. Maria has 8 cups of a fruit punch that consists of 25% orange juice and 75% apple juice. She wants to make a drink that is 40% orange juice. How many cups of orange juice should Maria add to th mixture?

A: ?

Determine whether the trinomial is a perfect-square. If so, factor. If not, explain.

2. 16x^2 - 24x - 9

A: ?

(I think this trinomial may be a perfect-square, but my textbook says otherwise.)

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1. cups of orange juice --- x
cups of apple --------- 8-x

.25x + .75(8-x) = 4.(8)
25x + 75(8-x) = 40(8)

I will let you finish it

2.
For your type of perfect-square trinomial the first and last terms would have to be positive.
---- the -9 takes this one out of the category.
It is not a perfect square.

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posted by Reiny
2. Argggghhh

Duplicate question

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posted by Reiny

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