Physical quantities - math word problems - page 38 of 177

Number of problems found: 3535

Consecutive Interior Angles
PQRS is a trapezium in which PQ is parallel to SR and ∠P = 130 ̊, ∠Q = 110 ̊. Find the remaining angles.
Circle graph
Erica surveyed students at her school about their favorite type of music. She made a circle graph to show the results. The central angle for the section of the graph that represents country music measures 72°. If 45 classmates chose the country as their f
The radius 4
The radius of a sphere is r = 9 cm. What is the volume of this sphere? Use π ≈ 3.14 and round your answer to the nearest hundredth.
Helium balloon
Oscar needs to fill a sphere-shaped balloon with helium. If the balloon has a diameter of 8 inches, what is the total amount of helium that the balloon will hold to the nearest tenth?
Minus temperature 2
The temperature in the town is -4.7 °C. The temperature decreases by 5.4 °C. What is the new temperature?
A rectangular 9
A rectangular tank measuring 50 cm by 54 cm by 40 cm is 3/5 filled with water. 21.6 L of the water is removed. What is the volume of water left in the tank? Give your answer in liters.
Human population
The populations of two cities after t years can be modeled by -150t+50,000 and 50t+75,000. What is the difference in the populations of the towns when t=4?
At midnight
The outside temperature at midnight was 3.4 °C. The temperature then changed at a constant rate of −0.78 °C per hour for 8 hours. What was the outside temperature at 8:00 AM?
This morning 2
This morning the temperature outside was -4 degrees. This afternoon the temperature was 21 degrees warmer. What was the temperature this afternoon?
Geometric 20
Find the geometric mean of 15 15 20 25 30.
A hemispherical
A hemispherical bowl has a radius of 3.5 cm. What would be the volume of water it would contain?
A cube 2
A cube has an edge length of 4 cm. Then its volume is:
The midday
The midday temperature in Pensacola Beach was 84 °F. For the next five hours, it changed to –2 °F per hour. The expression 84 − |−2 ⋅ 5| represents the current temperature. What is the current temperature in degrees Fahrenheit?
Cylinders and cube
How many cylinders of radius 20 cm and height 0.7 metres can be formed by melting a cube with sides of 2.2 metres?"
Ice cream company
An ice cream company is going to open new stores in Los Angeles, New York, and Orlando. The monthly cost for a square foot of rental space in each city is as follows. town; cost/ft² Los Angeles ; $5.25 New York ; $7.25 Orlando ; $4.25 The store in Los Ang
A solid
A solid consists of a cone standing on a hemisphere, both with equal radii of 1 cm, and the height of the cone equals its radius. Find the volume of the solid.
The areas
The areas of two similar triangles are 12 sq cm and 48 sq cm. If the height of the smaller one is 2.1 cm, then find the height of the bigger one.
A 100-inch
A 100-inch stick is to be divided into four using the ratio 2: 5: 7: 11. How long is the longest piece?
Temperature bellow zero
At 3 PM, the temperature was 12 °F. It then began dropping 2 °F every hour for 7 hours. What was the temperature after 7 hours?
Heat energy
Energy is measured using the unit Joule (J). Temperature is measured using the unit degree Celsius °C). To increase the temperature of 1 liter of water by 1 °C, 4200 J of heat energy is required. (a) Kelly wants to increase the temperature of 2 liters of

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