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Darina [25.2K]
3 years ago
10

Please help with #22! You don’t have to fully explain.

Mathematics
1 answer:
trasher [3.6K]3 years ago
3 0
The answer to the first part is 3 1/2 and the answer to the second question is 2/7
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A fireman's water hose shoots 320 kg of water each second against the door of a building. The velocity of the water is 20 m/s an
NeX [460]

Answer:

6400\ \text{N}

Step-by-step explanation:

\dfrac{m}{t} = Mass flow rate of water = 320 kg/s

m = Mass of water on the door

t = Time

v = Velocity of water on the door = 20 m/s

Force is given by

F=\dfrac{m}{t}v\\\Rightarrow F=320\times 20\\\Rightarrow F=6400\ \text{N}

The average force is exerted by the stream of water is 6400\ \text{N}.

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What is 0.0625 in a fraction in simplest form?
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The question asks to convert the current decimal number into a fraction in simplest form and the possible answer, base on my ways nad calculating the said decimal, its fractional form is 1/16. I hope you are satisfied with my answer and feel free to ask for more if you have question and further clarification
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3 years ago
Which statement about Amal’s work is true? Amal’s work is correct. Amal’s work is incorrect the wrong divisor is on the right si
IRINA_888 [86]

Answer:

C

Step-by-step explanation:

4 0
4 years ago
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Age If you add Natalie's age and Fred's age, the result is 40. If you add Fred's age to 4 times
jolli1 [7]

Answer:

Fred is 28 yrs old. Nathalie is 12yrs old

Step-by-step explanation:

Let Nathalie's age be x

Let Fred's age be a

x+a=40 yrs•••••1

4x+a=76yrs•••••2

a=40-x

Substitute a for 40-x in equation (2)

4x+40-x=76

3x=76-40

3x=36

x=12

a=40-12

a=28

5 0
3 years ago
Which equation represents a linear function?
djyliett [7]

Answer: B

Step-by-step explanation: A linear function is a straight line, and C and D both are curved.

8 0
3 years ago
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