MEDIUM
MYP:4-5
IMPORTANT
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Determine whether there is a relationship of direct proportion, inverse proportion or neither. Justify your answer. If there is a proportional relationship, find k.

y=x5 

Important Questions on Getting More Done in Less Time (Direct and Indirect Proportion)

EASY
MYP:4-5
IMPORTANT
MYP Mathematics A concept based approach 4&5 Standard>Chapter 21 - Getting More Done in Less Time (Direct and Indirect Proportion)>Practice 2>Q 2
The variable f is inversely proportional to the variable v. When v=6, f=4. Write the function that represents the relationship of proportion.
EASY
MYP:4-5
IMPORTANT
MYP Mathematics A concept based approach 4&5 Standard>Chapter 21 - Getting More Done in Less Time (Direct and Indirect Proportion)>Practice 2>Q 2
The variable f is inversely proportional to the variable v. When v=6, f=4. Find the value of the constant of proportionality. 
MEDIUM
MYP:4-5
IMPORTANT
MYP Mathematics A concept based approach 4&5 Standard>Chapter 21 - Getting More Done in Less Time (Direct and Indirect Proportion)>Practice 2>Q 2
The variable f is inversely proportional to the variable v. When v=6, f=4. Find f when v=2.
MEDIUM
MYP:4-5
IMPORTANT
MYP Mathematics A concept based approach 4&5 Standard>Chapter 21 - Getting More Done in Less Time (Direct and Indirect Proportion)>Practice 2>Q 3
y is in inverse proportion to x. When x=5.2, y=2. Find y when x=1.6
MEDIUM
MYP:4-5
IMPORTANT
MYP Mathematics A concept based approach 4&5 Standard>Chapter 21 - Getting More Done in Less Time (Direct and Indirect Proportion)>Practice 2>Q 4
T is inversely proportional to m. When m=1.8, T=4. Find T when m=3.1.
MEDIUM
MYP:4-5
IMPORTANT
MYP Mathematics A concept based approach 4&5 Standard>Chapter 21 - Getting More Done in Less Time (Direct and Indirect Proportion)>Practice 2>Q 5

Two variables s and t are in inverse proportion. Find the missing values in this table:

s44.8t0.82

EASY
MYP:4-5
IMPORTANT
MYP Mathematics A concept based approach 4&5 Standard>Chapter 21 - Getting More Done in Less Time (Direct and Indirect Proportion)>Practice 2>Q 6
To balance a seesaw, Archimedes' Law of the Lever says that the distance d of each person from the pivot must be inversely proportional to their weight w. Write down a function to represent the Law of the Lever.
MEDIUM
MYP:4-5
IMPORTANT
MYP Mathematics A concept based approach 4&5 Standard>Chapter 21 - Getting More Done in Less Time (Direct and Indirect Proportion)>Practice 2>Q 6
To balance a seesaw, Archimedes' Law of the Lever says that the distance d of each person from the pivot must be inversely proportional to their weight w. Mark weighs 20kg and is 1.5m from the pivot. Use this information to find k (constant of proportionality).