Direct Variation Practice Day 2

In a direct variation, y=39 when x=3.  Find the value of y when x=2.

• 26
• 3
• 58.5
• 2

The number of kilograms of water in a person’s body varies directly as the person’s mass. A person with a mass of 90 kg contains 60 kg of water. How many kilograms of water are in a person whose mass is 75 kg?

• 50 kg water

• 72 kg water

• 150 kg water

• 94 kg water

The number of pages that Hayden can read varies directly with the time spent reading.

If he reads 12 pages in 4 minutes, how many pages can he read in 17 minutes?

• 60 pages

• 51 pages

• 47 pages

• 75 pages

If 8 oranges cost $ 10.40, how many oranges can be bought for $ 33.80?

• 21

• 23

• 25

• 26

Tags

CCSS.6.EE.B.7

If car covers 102 km in 6.8 litres of petrol, how much distance will it cover in 24.2 litres of petrol?

• 363

• 330

• 375

• 396

Tags

CCSS.HSF-LE.A.1B

Is the relationship in the table a direct variation?

• Yes

• No

Does the graph show a direct variation?

• Yes

• No

Does the given graph show a direct variation?

• Yes

• No

For Box A, find the constant of proportionality (K).

• k=5.5

• k=.181818

• k=22

• Cannot solve for K

Tags

CCSS.7.RP.A.2B

Write a direct variation equation to represent the relationship in box D.

• $y=\frac{1}{7}x$

• $y=7x$

• $y=.1428x$