3 years ago

A swimming pool is being filled at the rate of 7800 pt/min (pints per minute). How many pints per second is this?

Mathematics

1 answer:

Triss [41]3 years ago

8 0

130 pints per second

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A jar was full of quarters and $1 coins. 2/5 of the coins in the jar were quarters. The rest were $1 coins. There were 10 more $

erma4kov [3.2K]

Answer:

50 coins

Step-by-step explanation:

if there is 1/5 more 1 dollar coins than quarters that means 1/5 of the total number is equal to 10, and if 1/5 is 10 that means 5*10=50 is the total number

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2 years ago

How many ounces of water should you drink for every 20 minutes of activity? 12?

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2 years ago

A certain chalkboard manufacturer determines that their largest blackboard model has a mean length of 5.00 m and a standard devi

Igoryamba

Answer:

23 chalkboards

Step-by-step explanation:

Given:

Mean length = 5 m

Standard deviation = 0.01

Number of units ordered = 1000

Now,

The z factor = $\frac{\textup{x - Mean}}{\textup{standard deviation}}$

The z factor = $\frac{\textup{4.98 - 5}}{\textup{0.01}}$

Z = - 2

Now, the Probability P( length < 4.98 )

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therefore,

P( length < 4.98 ) = 0.0228

Hence, out of 1000 chalkboard ordered (0.0228 × 1000) = 23 chalkboard are likely to have lengths of under 4.98 m.

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3 years ago

Find the mode of the following data for data sets a-d (Remember what the steps are for finding the mode ).Rewrite the problem as

Nitella [24]

The mode would be 17, it’s the number that appears the most. I’m not rewriting it though

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3 years ago

SUSTITUTION 3X-6Y=2<br> 5X+4Y=1

Montano1993 [528]

3x - 6y = 2
5x + 4y = 1

(-1/3, -1/6)

~Hope I helped!~

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3 years ago