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Solving Word Problems involving Direct Variation

Authored by April Salonga

Mathematics

9th Grade

Used 1+ times

Solving Word Problems involving Direct Variation
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5 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A part-timer worker earns Php 120 per hour. How much will he earn if he works for 25 hours?

Php 960

Php 2000

Php 2880

Php 3000

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The distance of the object it falls varies diretly as the square of the time of the fall, how is this expressed in equation form?

Answer explanation

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The stretch of a spring varies directly with the weight attached to it. If the spring stretches 3 cm when a 5 kg weight is attached, how far will the spring stretch if a 20 kg weight is attached, assuming the spring obeys Hooke's law?

4 cm

5 cm

12 cm

60 cm

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The distance a car travels varies directly with time. If the car travels 100 miles in 2 hours, how far will it travel in 5 hours?

200 miles

250 miles

400 miles

50 0miles

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The electrostatic force between two charges varies directly with the square of the distance between them. If the force is 25 Newtons when the distance is 5 cm, what is the force when the distance is 10 cm?

50 Newtons

100 Newtons

125 Newtons

250 Newtons

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