Pre-Algebra Chapter 6 - Ramsey School District

41. SNACKS The Skyway Snack
Company makes a snack mix that
contains raisins, peanuts, and
chocolate pieces. The ingredients
are shown at the right. Suppose the
company wants to sell a larger-sized
bag that contains 6 cups of raisins.
How many cups of chocolate pieces
and peanuts should be added?
1 c raisins
1
c peanuts
c chocolate pieces
4 1
2
42. PAINT If 1 pint of paint is needed to paint a square that is 5 feet on each
side, how many pints must be purchased in order to paint a square that is
9 feet 6 inches on each side?
a c
43. CRITICAL THINKING The Property of Proportions states that if d , b
then ad bc. Write two proportions in which the cross products are
ad and bc.
Standardized
Test Practice
44. WRITING IN MATH Answer the question that was posed at the beginning
of the lesson.
How are proportions used in recipes?
Include the following in your answer:
• an explanation telling how proportions can be used to increase or
decrease the amount of ingredients needed, and
• an explanation of why adding 10 ounces to each ingredient in the punch
recipe will not result in the same flavor of punch.
45. Jack is standing next to a flagpole as
shown at the right. Jack is 6 feet tall.
Which proportion could you use to
find the height of the flagpole?
3 6 x
12 x 6 3
A
B
12
6 3 x
12 3 12
C
D
x 6
12 ft
3 ft
Maintain Your Skills
Mixed Review
Express each ratio as a unit rate. Round to the nearest tenth, if necessary.
(Lesson 6-1)
46. $5 for 4 loaves of bread 47. 183.4 miles in 3.2 hours
48. Find the next three numbers in the sequence 2, 5, 8, 11, 14, . . . .
(Lesson 5-10)
Getting Ready for
the Next Lesson
ALGEBRA Find each quotient. (Lesson 5-4)
49. x 5 x
20 50. 3 y
5 y
4 8
51. 4 z
7 yz
w w
PREREQUISITE SKILL Complete each sentence.
(To review converting measurements, see pages 720 and 721.)
52. 5 feet inches 53. 8.5 feet inches
54. 36 inches feet 55. 78 inches feet
274 Chapter 6 Ratio, Proportion, and Percent