Ratio, Proportions, Scale Models

Ms. Kings second period P.E. Class has 56 students. 40 of these students enjoy playing baseball. This holds true for all 77 students in all of Ms. King's classes. How many of the 77 students enjoy playing baseball?

• 55
• 48
• 114
• 168

Tags

CCSS.3.OA.A.3

Ms. Ginsberg's second period Journalism class has 30 students. 18 of these students are earning an A or a B. This rate holds true in all of Ms. Ginsberg's classes. If Ms. Ginsberg has 80 students total, how many of these Journalism students are earning an A or a B?

• 48
• 55
• 114
• 168

Tags

CCSS.7.RP.A.3

A group of students were asked about their favorite foods. Out of the 50 students surveyed, 30 listed pizza among their favorite foods. At that rate, if 190 students were surveyed, how many would you expect to list pizza as a favorite food?

• 114
• 55
• 48
• 168

Tags

CCSS.7.RP.A.3

Krystle is selling magazine subscriptions as part of a school fundraiser. During the first 72 days of the fundraiser Krystle sold 56 subscriptions. If Krystle maintained that rate, how many subscriptions would Krystle sell in a 216-day period?

• 168
• 55
• 48
• 114

Tags

CCSS.6.RP.A.3B

Ms. Kings second period P.E. Class has 14 students. 10 of these students enjoy playing baseball. This holds true for all 168 students in all of Ms. King's classes. How many of the 168 students enjoy playing baseball?

• 120
• 132
• 216
• 100

Tags

CCSS.6.RP.A.3B

In his first 40 games, Rashad hit 88 homeruns. If he continues at that rate, how many homeruns will Rashad hit in his next 60 games?

• 132
• 120
• 216
• 100

Tags

CCSS.6.RP.A.3B

Ms. Ginsberg's second period Journalism class has 70 students. 63 of these students are earning an A or a B. This rate holds true in all of Ms. Ginsberg's classes. If Ms. Ginsberg has 240 students total, how many of these Journalism students are earning an A or a B?

• 216
• 132
• 120
• 100

Tags

CCSS.7.RP.A.3

A wildlife reserve has a population of 120 elephants. A group of researchers trapped 42 elephants and recorded their vital statistics. Of the trapped elephants, 35 were female. If that rate holds true for the entire population of 120 elephants, how many female elephants are on the wildlife reserve?

• 100
• 120
• 132
• 216

Tags

CCSS.6.RP.A.3B

A wildlife reserve has a population of 70 elephants. A group of researchers trapped 30 elephants and recorded their vital statistics. Of the trapped elephants, 24 were female. If that rate holds true for the entire population of 70 elephants, how many female elephants are on the wildlife reserve?

• 56
• 204
• 100
• 216

Tags

CCSS.6.RP.A.3B

In his first 64 games, Rashad hit 48 homeruns. If he continues at that rate, how many homeruns will Rashad hit in his next 272 games?

• 204
• 56
• 100
• 216

Tags

CCSS.6.RP.A.3B