# Try solving the following problem: In a class of 40 students, 17 have ridden an airplane, 28 have ridden a boat. 10 have ridden a train, 12 have ridden both an airplane and a boat. 3 have ridden a train only and 4 have ridden an airplane only. Some students in the class have not ridden any of the three modes of transportation and an equal number have taken all three.

b. How many students have taken only the boat?

Answers: 2

Math, 28.10.2019 14:45

100 students were surveyed whether they are playing badminton or swimming.25 students were playing both swimming and badminton and 50 students were playing swimming. how many students were; into swimming but not in badminton? into badmiton but not in swimming? into both badminton and swimming? into either badminton or swimming? neither into badminton or swimming?

Answers: 1

Math, 28.10.2019 14:46

The first three test scores of each of the four students are shown. each test is 100 points. each student hopes to maintain a mean score of 85. find the score needed by each student on the fourth test to have a mean score of 85, or explain why such value is not possible.a. lisa: 78, 80, 100 b. mary: 90, 92, 95 c. lina: 79, 80, 81d. willie: 65, 80, 80

Answers: 1

Math, 28.10.2019 15:29

Zvaries jointly as the square root of the product of x and y. if z=3 when x=3 and y=12, find the x when z=6 and y =64

Answers: 3

Try solving the following problem: In a class of 40 students, 17 have ridden an airplane, 28 have ri...

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