Which of the following correctly describes the variation in the equation r=d/t?

1. r varies inversely with d and jointly with t
2. r varies jointly with t and d.
3. r varies inversely with t and jointly with d.
4. r varies directly with d and inversely with t.

Which description is represented by a discrete graph? kiley bought a platter for $19 and several matching bowls that were $8 each. what is the total cost before tax? the temperature at 9 a.m. was 83° f and is heating up at an average rate of 6°f per hour. what is the temperature x hours later? juan ate an egg with 78 calories and some cereal with 110 calories per serving for breakfast. what is the total amount of calories he consumed? a bottle contained 2,000 ml of liquid and is being poured out at an average rate of 300 ml per second. how much liquid is left in the bottle after x seconds?