A classroom of 30 students has an air conditioning system that moves 450 cubic feet of air per minute. Determine the rate of ventilation per child.

Q: The lengths and widths of the two cell phones are proportional. What is the width, in inches, of the…

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Q: A machine takes 1 minute to fill 6 cartons of eggs. At this rate, how many minutes will it take to…

A: Let the machine take x minutes to fill the 420 cartons of eggs. So the rate of the filling cartons…

Q: A 16-ounce chocolate mocha coffee with whipped cream contains 470 calories, 18 grams of fat, 63…

A: A 16-ounce chocolate mocha coffee with whipped cream contains 470 calories, 18 grams of fat, 63…

Q: An air conditioning system can circulate 420 cubic feet of air per minute. How many cubic yards of…

A: Since you have asked multiple questions in a single request we would be answering only the first…

Q: A 450-gallon tank full of water is draining at a rate of 20 gallons per minute.

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Q: A hose fills a hot tub at a rate of 2.99 gallons per minute. How many hours will it take to fill a…

A: Introduction: When the rate at which work is done is given, we can find the time to complete the…

Q: What must be the diameter of pipe in inches which is required to carry 25 gallon per minute (gpm) of…

A: Solution :

Q: percentage of the total number of shafts will be tolerable?

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Q: If a field of view is 3.2 mm at 60X, what is the field of view at 25X?

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Q: If the resistance of a wire is 1.584 ohms per 1000 feet, what is the resistance of 150 of this wire?

A: We have to use the concept that resistance is proportional to length.

Q: A printer prints 75 pages in 5 minutes. At the samerate, how many pages does the printer print in 7…

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Q: The unit area and unit volume total project costs for a library are $114 per square foot and $7.55…

A: Given: The unit area and unit volume total project costs for a library are $114 per square foot and…

Q: For each ratio of the side of the model and the corresponding side in the real-life building,…

A:

Q: In an electrical circuit, the voltage across a resistor is directly proportional to the current…

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Q: A hose fills a hot tub at a rate of 3.58 gallons per minute. How many hours will it take to fill a…

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Q: A crowd standing along a parade route is 5 feet deep and 1 mile long on both sides of the street. If…

A: The ratio of person to area occupied is computed as follows. p:A=1:2.5=2:5 Observe that 1 mile =…

Q: It takes 40 oz of grass seed to seed 2400 ft of lawn. At this rate, how much would be needed for…

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Q: to water a lawn adequately, it takes 538 gal of water for every 1000 sq ft. what is the rate in…

A: given : 538 gal of water require for every 1000 sq ft∴ for 1 sq.ft 2381000 gal            ⇒0.538 gal…

Q: The masses of two similar round mooncakes are 250 g and 54 g respectively.   If the mass of the…

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Q: A swimming pool is 20 ft wide, 40 ft long, 6. 12 1 If the pool is being filled at a rate of 0.7 ft…

A: Given The length, width, and deep of the pool is 40 ft, 20 ft, and 3 ft respectively. The deepest…

Q: An air conditioning system can circulate 520 cubic feet of air per minute. How many cubic yards of…

A: Given An air conditioning system can circulate 520 cubic feet of air per minute

Q: an air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of…

A:

Q: A hose fills a hot tub at a rate of 4.61 gallons per minute. How many hours will it take to fill a…

A:

Q: Water is flowinf 38 inches per second and at a rate of 1.125 cubic feet per second. What is the pipe…

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Q: A patient is to receive medication at the rate of 0.45mg per kilogram of body weight. How many…

A:

Q: It took a crew 1 h 50 min to row 8 km upstream and back again. If the rate of flow of the stream was…

A: Given, It took a crew 1 h 50 min(=110 min) to row 8 km upstream and back again and the rate of flow…

Q: The height of a cylinder is 8 centimeters. The circumference of the base of the cylinder is 20π…

A: we have to find the volume of the cylinder

Q: An airplain makes a 2,748 mile flight in 6 hours. what is the airplain's average rate of speed in…

A: From the given statement, the airplane flies 2,748 miles in 6 hours.

Q: If 2  lb of fertilizer will  150 ft of lawn,  how many would be needed to cover 500ft?

A: If 2 lb of fertilizer will  cover 150 ft2 of lawn,  how much fertilizer would be needed to cover 500…

Q: A company Paves 50 miles of highway using 600 pounds of cement. What is the productivity?

A: A company Paves 50 miles of highway using 600 pounds of cement

Q: a 350 gallon spray tank can covers 14 acres find the rate of application in gallons per acre

A: Given 350 gallon spray tank can covers 14 acres

Q: One round cake pan has a diameter of 10 inches. A second round cake pan has a diameter of 8 inches.…

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Q: A car traveling on a 2.7° uphill grade has a grade resistance of 120 lb. Determine the weight of the…

A: A car traveling on a 2.7° uphill grade has a grade resistance of 120 lb.   formula used: F=wsinθ The…

Q: The number of swings back and forth of a pendulum of length "L" in inches each 375 minute is . About…

A: Solution: Given that number of swings back and forth of pendulum of length 'L' in inches each minute…

Q: To avoid a mountain range, a helicopter must climb 7,485 feet in 4 minutes. What is the helicopter's…

A: It is given that the helicopter must climb 7,485 feet in 4 minutes.

Q: A hose fills a hot tub at a rate of 4.11 gallons per minute. How many hours Will it take to fill a…

A:

Q: Beaumont, Texas, is about 150 miles from Toledo Bend. If Leo Miller leaves Beaumont at 4 a.m. and…

A: Consider that Beaumont, Texas is at a distance of 150 miles from Toledo Bend. Leo Miller leaves…

Q: It takes one week for a crew to pave 3/5 kilometer of road.  At that rate how long will it take to…

A:

Q: An asteroid has hit the Earth and created a huge crater. Engineers and scientists have measured…

A: Circumference of crater=79.5 mi 2πr=79.5r=79.52πr=12.659 mi

Q: A weed killer is to be applied at a rate of two ounces per 1000gallons of water (2oz/1000gallons).…

A: GivenThe applied rate of a weed killer is 2 Oz/1000 gallons 28.375 mL per 1 Oz 4.5 liters per 1…

Q: calculate the paint thickness if 2 gallons of paint covers a wall 10 feet high by 30 feet long

A: Given that Height of the wall = 10 feet. Length of the wall = 30 feet. Quantity of paint = 2…

Q: a hot air balloon was rising at a rate of 494 feet per minute convert this speed to meters per…

A: This is simple conversation we will convert both according to given data.

Q: . A hose fills a hot tub at a rate of 4.5 gallons per minute. How many minutes will it take to fill…

A:

Q: If a car averages 32 miles per​ gallon, how many kilometers per liter is​ this?

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Q: Express the rate in lowest terms (in mi/h). 500 mi 124 h mi/h

A: We need to simplify the following expression 500 mi1212h

Q: A brand of orange juice contains 194kJ of energy per 100ml. What is the volume of juice in the…

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Q: Find the muzzle speed of a gun whose maximum range is 24.5 km.

A: We have to find the muzzle speed of a gun whose maximum range is 24.5 km. We know horizontal range,…

Q: A ship is sailling at 5 knots (nautical miles per hourlon

A: Given, Speed of ship: Vs=5knots. Direction of ship: θ=000° speed of wind: Vw=4knots Direction of…

Q: The rectangular front windshield of the bus has the length of 1.5V3 m and the width of 1.5 m. The…

A: The rectangular front of windshield has  Lengthl=1.53mWidthb=1.5m The wipers are attached to bottom…

Q: A builder sells an 1,800 ft2 home for $117,000. What would be the price (in dollars) of a 2,600 ft2…

A: A builder sells an 1,800 ft2 home for $117,000. To find the price (in dollars) of a 2,600 ft2 home…

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.