Activity 1
A. Choose the letter that corresponds to your answer.
1. If y varies directly as x and y = 22 when x = 2, find y when x = 17.
d. 187
c. 49
a. 11
d. 1
c. 50
b. 70
b. 44
2. If p varies directly as b and p = 25 when b =25, find b when p= 140.
The weight (M) of an astronaut on the surface of Mars varies directly with her weight (E) on Earth.
a. 140
3.
A woman weighing 90 kg on Earth weighs only 30 kg on Mars. How much would a 30-kg astronaut
weigh on Mars?
4. The cost (C) of an airplane ticket is directly proportional to the number (M) of miles of the trip. A
a. 30 kg
b. 10 kg
a. P4,150
b. P3,800
c. 3kg
d. 1 kg
300-mile trip costs P2,100. What is the cost of a 450-mile trip?
c. P3,300
d. P3,150​