Algebra 1 2-7 Guided Practice: Solving Proportions
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N.Q.1
Solve It! You are making beaded necklaces, using a pattern in which 2 large red beads are followed by 3 small blue beads. Each set of 5 beads adds 1.25 in. to the length of the necklace. How many of each color bead will you need for a 20-in necklace?
Vocabulary: Define ratio in your own words.
Vocabulary: Define proportion in your own words.
Problem 1 Got It? What is the solution of the proportion?
Problem 2 Got It? What is the solution for the proportion?
Problem 2 Got It? Would you rather use the Cross Products Property or the Multiplication Property of Equality (to multiply the numerator and denominator of at least 1 ratio by the same number) to solve the proportion? Explain.
Problem 3 Got It? What is the solution of the proportion?
Problem 4 Got It? An 8-oz can of orange juice contains about 97 mg of vitamin C.
About how many milligrams of vitamin C are there in a 12-oz can of orange juice?
Explain your answer.