Joint Variation

Joint Variation

9th Grade

8 Qs

quiz-placeholder

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Joint Variation

Joint Variation

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

Barbara White

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8 questions

Show all answers

1.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

Write the given statement in mathematical equation. (no spacing)


r varies jointly as s and w

2.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

Write the given statement in mathematical equation. (no spacing)


Interest (I) varies jointly as the principal (P) amount deposited, the rate (r) and time (t) of the deposit.

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Solve for the constant of variation, k. (Use / for the fraction bar)


y varies jointly as x and z. x= -2, when y=3 and z= -4

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Solve for the constant of variation, k. (Use / for the fraction bar)


z varies jointly as x and y. x=3, when y=-8 and z=6.

5.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

y varies jointly as x and z.

If y= -40 when x= -2 and z= -1, find y when x=4 and z= -3.

6.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

m varies jointly as n and p.

If m=36 when n=3 and p=4, find n if m=96 and p=4.

7.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

Kinetic energy Ke varies jointly as the mass m and the square of the velocity V. A mass of 7 grams and a velocity of 4cm/s has a kinetic energy of 80 ergs. Find the kinetic energy for a mass of 9 grams and a velocity of 5 cm/s. (Write your final answer in fraction and of the form __ ergs)

8.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

The price P of an aluminum tube is jointly proportional to its radius r and the length l. If a 12-foot pipe with 5-inch radius costs 5250 pesos, how much will be the cost of a 9-foot pipe with a 6-inch radius? (Write your final answer without comma in the form: __ pesos)