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kow [346]
3 years ago
7

2. Tyler can type 50 words per minute. He needs to finish typing his 500-word

Mathematics
1 answer:
nikdorinn [45]3 years ago
6 0

Answer:

9.5 minute

Step-by-step explanation:

500 - 25 = 50x

x  = \frac{475}{50}

x = 9.5 minute

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5 bags of popcorn and 6 candies.

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(5 * $5.50) + ($3.5*6) = $48.5

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3 years ago
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A well mixed tank with a capacity of 1500 gals originally contains 1000 gallons of freshwater. One pipe containing 1/2 lb of sal
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Answer:

400 lb of salt

Step-by-step explanation:

Let us assume the water flows into the rank for x minutes.

There is an initial of 1000 gallons of water in the tank and water flows in through one pipe at 4 gal/min and through another pipe at 6 gal/min. In x minute, the amount of water in the tank = 1000 + 4x + 6x = 1000 + 10x

Water flows out at 5 gal/min, therefore in x minute the amount of water in the tank = 1000 + 10x - 5x = 1000 + 5x

The tank begins to overflow when it is full (has reached 1500 gallons). Therefore:

1500 = 1000 + 5x

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5x = 500

x = 100 minutes.

1/2 lb salt per gallon flows into the tank at 4 gal/min and 1/3 lb of salt is flowing in at 6 gal/min, in 100 min the amount of salt that entered the tank = 4 gal/min × 100 min × 1/2 lb/gal + 6 gal/min × 100 min × 1/3 lb/gal= 400 lb

Therefore the amount of salt is in the tank when it is about to overflow = 400 lb of salt

7 0
3 years ago
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42.2% of the applications came from small businesses

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3 years ago
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