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1. a 20-acre field produces 300 bushels of wheat. let w represent the number of bushels produced by a 50-acre field at the same rate. select the correct statement of the given condition.

a. 20/300 = 50/w

b. 20/w = 50/300

c. 20/300 = w/50

d. 20/50 = w/300

2. w varies inversely as the square of t. if w = 12 when t = 2, find t when w = 27.

a. 27t = 24

b. 27t² = 48

c. 108 = 12t²

d. 12t = 54

3. the pressure p of a compressed gas is inversely proportional to the volume v. if there is 3 pressure of 25 pounds per square inch when the volume of gas 400 cubic inches, find the pressure when the gas is compressed to 200 cubic inches.

a. 200p = 1

b. 25p = 8

c. 400p = 5000

d. none of the above

4. an experimental drug is given to 100 people with a certain ailment. fifty-three of these people were cured by the drug. select the statement of condition for the expectation if a cure c if 2000 people with the ailment are given the drug.

a. c/53 = 100/2000

b. 10/53 = c/200

c. c/2000 = 53/100

d. 100/53 = c/2000

Answers

  • Réponse publiée par: rhaineandreirefuerzo

    1. Using Acre/Bushels:

    20/300 = 50/W

    A

    2. Using W/t²

    W/t² = 12/2² = 12/4

    12/4 = 27/t²

    12t² = 108

    C

    3. Using pressure/volume

    P/V = 25/400

    25/400 = P/200

    400P = 5000

    C

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1. a 20-acre field produces 300 bushels of wheat. let w represent the number of bushels produced by...