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Rus_ich [418]
2 years ago
5

A truck's gas tank holds 50 gallons of gas. if one gallon takes 30 seconds to pump, how many minutes will it take to fill the em

pty tank?
Mathematics
1 answer:
umka2103 [35]2 years ago
7 0
To find how long it will take to fill the tank, you can use the idea that every 30 seconds will get you one gallon closer to being full.

This means to fill 50 gallons, you will need 50 groups of 30 seconds.  

50 x 30 = 1500 seconds

1500/60 = 25 minutes.

It will take 25 minutes.  

You could also think of it as filling 2 gallons every minute.  It would take 25 of these.
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Step-by-step explanation:

i think ok just a guess

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2 years ago
Alaskan Salmon are fished extensively to serve in restaurants. However, there are limits to how many and the size of fish which
TEA [102]

Answer:

The salmon size is less than equal to 10.28 inches represent bottom 25% of all salmon.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 12.5 inches

Standard Deviation, σ = 3.3

We are given that the distribution of salmon size is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of x such that the probability is 0.25

P( X < x) = P( z < \displaystyle\frac{x - 12.5}{3.3})=0.25  

Calculation the value from standard normal z table, we have,  

\displaystyle\frac{x - 12.5}{3.3} = -0.674\\\\x = 10.2758\approx 10.28  

Thus, the salmon size is equal to or less than 10.28 inches, they are considered small and young and represent bottom 25% of all salmon.

4 0
2 years ago
When Quinn got home, he turned the air conditioner on.
aleksley [76]

Answer:

It’s 42

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Q=42-0.7t

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