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Francine uses 
(2)/(3) cup of pineapple juice for every 
(1)/(3) cup of orange juice to make a smoothie.
Enter the number of cups of pineapple juice Francine uses for 1 cup of orange juice.
cups of pineapple juice

Francine uses 23 \frac{2}{3} cup of pineapple juice for every 13 \frac{1}{3} cup of orange juice to make a smoothie.\newlineEnter the number of cups of pineapple juice Francine uses for 11 cup of orange juice.\newline\square cups of pineapple juice

Full solution

Q. Francine uses 23 \frac{2}{3} cup of pineapple juice for every 13 \frac{1}{3} cup of orange juice to make a smoothie.\newlineEnter the number of cups of pineapple juice Francine uses for 11 cup of orange juice.\newline\square cups of pineapple juice
  1. Set up ratio: To find out how many cups of pineapple juice Francine uses for 11 cup of orange juice, we need to set up a ratio based on the given information. We know that Francine uses 23\frac{2}{3} cup of pineapple juice for every 13\frac{1}{3} cup of orange juice.
  2. Set up proportion: To find the equivalent amount of pineapple juice for 11 cup of orange juice, we can set up a proportion. If (23)(\frac{2}{3}) cup of pineapple juice corresponds to (13)(\frac{1}{3}) cup of orange juice, then we want to find the amount of pineapple juice that corresponds to 11 cup of orange juice. We can write this as:\newline23 cup pineapple juice13 cup orange juice=x cup pineapple juice1 cup orange juice\frac{\frac{2}{3} \text{ cup pineapple juice}} {\frac{1}{3} \text{ cup orange juice}} = \frac{x \text{ cup pineapple juice}}{1 \text{ cup orange juice}}
  3. Cross-multiply and divide: To solve for xx, we can cross-multiply and divide. This gives us:\newlinex=23×1 cup orange juice13x = \frac{2}{3} \times \frac{1 \text{ cup orange juice}}{\frac{1}{3}}
  4. Simplify equation: Simplifying the right side of the equation, we multiply (23)(\frac{2}{3}) by 11 and divide by (13)(\frac{1}{3}). Dividing by a fraction is the same as multiplying by its reciprocal, so we get:\newlinex=(23)×(31)x = (\frac{2}{3}) \times (\frac{3}{1})
  5. Final calculation: Multiplying (23)(\frac{2}{3}) by (31)(\frac{3}{1}) gives us:\newlinex=2×33x = \frac{2 \times 3}{3} \newlineSimplifying the multiplication and division, we get:\newlinex=2×(33)x = 2 \times (\frac{3}{3})\newlinex=2×1x = 2 \times 1\newlinex=2x = 2 \newlineTherefore, Francine uses 2 2 cups of pineapple juice for 1 1 cup of orange juice.

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