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DL: W5 - Inverse Variation

Authored by Denise Rodriguez

Mathematics

9th - 11th Grade

Used 4+ times

DL: W5 - Inverse Variation
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12 questions

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1.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

Given y=kxy=\frac{k}{x} , which means  y varies inversely as x.y\ varies\ inversely\ as\ x.   

If   x=5 and k=30, then y=\ x=5\ and\ k=30,\ then\ y= ______ 

2.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

Given q varies inversely as r, and  q=12 where r=3q=12\ where\ r=3   What is   q when r=4 ?\ q\ when\ r=4\ ?  

3.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

Given a varies inversely as b, and  a=3 when b=12a=3\ when\ b=12   What is   a when b=1 ?\ a\ when\ b=1\ ?  

4.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

The time it takes to drive between two amusement parks varies inversely as speed.


You can drive from San Antonio, SeaWorld to Disney World in Orlando in about 17 hours driving 70 mph.

About how long will it take you if you drive 60 mph

Round to the nearest tenths place.

5.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

The frequency of a whale's wave is inversely proportional to the wavelength.


A wave 88 m long has a frequency of about 17 kHz. What is the approximate length of a wave with a frequency of 5 kHz?

Round to the nearest tenths place.

6.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

The total amount of money earned varies inversely with the amount paid per hour.


You can earn a weekly salary in 37 hours at $9.25 an hour.


About how any hours would it take to earn the same salary at $10.75 an hour? (round to the nearest hour)

7.

FILL IN THE BLANK QUESTION

15 mins • 1 pt

Given y=kxy=\frac{k}{x} , which means  y varies inversely as x.y\ varies\ inversely\ as\ x.   

If   x=10 and k=90, then y=\ x=10\ and\ k=90,\ then\ y= ______ 

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