Direct relationship - practice problems
Number of problems found: 358
- A pack
A pack of 8 sports drink costs $5. How much would it cost to buy 72 sports drinks?
Manganese bronze contains the following amounts of metals per pound: copper 0.89 lb, tin 0.10 lb, and manganese 0.01 lb. How much copper is in a shaft that weighs 235 pounds?
- Sack of rice
A 50-kilogram sack of rice has a price ₱1 750. How much do you pay if you only buy 35 kilograms of it?
- The speed
The speed (v) of a moving object is inversely proportional to the time (t) traveled is written as?
Macky income varies directly as the number of days that she works. If she earns 8000 pesos in 20 days, how much will she earn if she worked 3 times long?
- Jointly and cube power
If y varies jointly as x and the cube of z and y=16 when x=4 and z=2, find an equation that represent this relationship
- Direct proportion
y varies directly as x and y=32 when x=4. Find the constant of variation.
- Directly and inversely
If z varies directly as x and inversely as y, and z = 16 when x = 3 and y = 2, find z when x = 5 and y = 3
- Square function
If z varies jointly as x and the square of y, and z = 20 when x = 4 and y = 2, find z when x = 2 and y = 4.
- Jointly function
If z varies jointly as x and y, and z = 12 and x = 2 and y = 4, find z when x = 5 and y = 2
- The cost 4
The cost to tile a floor that measures 7 x 6 square feet is $ 2,100. How much will it cost to tile a floor that measures 11 x 13 square feet?
- Volleyball 2
In a volleyball game, Michael made 4 shots in 8 tries. At this rate, how many shots can he make in 12 tries?
- Circle segment
A quarter circle with radius 4 has the same content as a circle segment with radius 3. What is the magnitude of the center angle of the circle segment?
- Earnings 2
Trina's paycheck earnings varies directly as the number of hours she works. If she works 19 hours and earns 187.15 pesos, what should she earn if she worked 40 hours?
- Gas price
If a cm³ of gas costs rm 1.50, how many cents would a liter of gas cost? 1 rm = 1 Malaysian Ringgit = 100 Malaysian Ringgit cents = equals 0.21 Euro in 2021/Q3
- Oil crisis
A car runs 16 km using 1 litre of petrol. How much distance will it cover using 2 3/4 litres of petrol?
- If Jada
If Jada read 75 pages in four hours how long would it take her to read it 250 pages?
- Markus painter
Markus used ¾ liter of paint to cover 10 ½ square meters of wall. How many liters of paint is needed to cover 12 ¼ square meters of wall?
Three people pick strawberries from 48 rows in 8 hours. How many hours do five people need to pick strawberries from 20 rows?
The state Colorado has the shape of a rectangle. The map is sold on 2 posters. The first has dimensions of 70 cm and 50 cm in a scale of 1: 1,000,000. The second poster has dimensions of 175 cm and 125 cm. What is the scale of the second poster?