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3 years ago

72oz=. what would 72 oz be in lbs

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

7 0

Answer: 5 pounds

Step-by-step explanation: "Oz" is the abbreviation for ounces and "lb" is the abbreviation for pounds.

To convert 72 ounces into pounds, first find the conversion factor for ounces and pounds.

Conversion factor ⇒ 16 ounces = 1 pound

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Next, notice that we are going from a smaller unit "ounces" to a larger unit "pounds" and when we go from a smaller unit to a larger unit we divide.

So here, we will divide 72 ounces by the conversion factor which is 16.

72 ÷ 16 = 5

Therefore, <em>72 ounces = 5 pounds</em>.

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3 years ago

An automobile manufacturer is preparing a shipment of cars and trucks on a cargo ship that can carry 21,600 Tons. The cars weigh

inysia [295]

Answer:

Number of trucks (y) that can be shipped if the number of cars (x) is known $=\frac{21,600-3.6x}{7.5}$

Step-by-step explanation:

A cargo ship can carry 21,600 Tons.

Let x denotes number of cars and y denotes number of trucks.

The cars weigh 3.6 tons each and the trucks weigh 7.5 tons each.

Therefore,

$3.6x+7.5y=21,600$

Now write y in terms of x.

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3 0

3 years ago

A spherical exercise ball has a maximum diameter of 30 inches when filled with air. The ball was completely empty at the start,

Alex73 [517]

Answer:

A) A(t) = 4500*π - 1600*t

B) A(4) = 7730 in³

C) t = 8,8 sec

Step-by-step explanation:

The volume of the sphere is:

d max = 30 r max = 15 in

V(s) = (4/3)*π*r³ V(s) = (4/3)*π* (15)³

V(s) = 4500*π

A) Amount of air needed to fill the ball A(t)

A(t) = Total max. volume of the sphere - rate of flux of air * time

A(t) = 4500*π - 1600*t in³

B) After 4 minutes

A(4) = 4500*π - 6400

A(4) = 14130 - 6400

A(4) = 7730 in³

C) A(t) = 4500*π - 1600*t

when A(t) = 0 the ball got its maximum volume then:

4500*π - 1600*t = 0

t = 14130/1600

t = 8,8 sec

8 0

3 years ago