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mariarad [96]
3 years ago
6

An electric motor pumps water into a pool at a rate of 500 liters per hour. After a tune up, it's rate increases by x liters per

hour. If the motor now takes 3 hours to pump 1800 liters, in which equation does x represent the increase in speed after the tune up?
Mathematics
1 answer:
Sidana [21]3 years ago
4 0

Answer:

(500+x)*3=1800

Step-by-step explanation:

x will increase the rate so that the motor will pump 1800 liters in 3 hours, which makes x=100, and (500+100)*3=1800

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Answer:

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Step-by-step explanation:

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PWEASE HELP ASAP my friends and I cant figure this out I'm hoping one of u guys can
Degger [83]

The number of viruses was 4000 times greater than number of protozoa.

Step-by-step explanation:

Given,

Number of protozoa = 5*10^5

Number of viruses = 2*10^9

Let,

x be the number of times number of viruses is greater than number of protozoa.

Number of viruses = Number of time * Number of protozoa

2*10^9=(5*10^5)x

Dividing both sides by 5*10^5

\frac{2*10^9}{5*10^5}=\frac{(5*10^5)x}{5*10^5}\\\\4*10^3= x\\x=4*10^3 \\x=4000

The number of viruses was 4000 times greater than number of protozoa.

Keywords: division, scientific notation

Learn more about division at:

  • brainly.com/question/10046556
  • brainly.com/question/100704

#LearnwithBrainly

3 0
4 years ago
The temperature changed from 3 degrees below zero at midnight to 7 degrees below
NikAS [45]
The temperature decreased by 4 degrees.
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3 years ago
Last week during swim practice, Kamil swam 19 laps in 10.8 minutes. This week at swim practice, Kamil swam 18 laps in 12.6 minut
Lerok [7]
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3 years ago
Which equation represents the line that is parallel to y= 3/4x + 7 and passes through (-12,36)?
Nady [450]
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For the new equation, the line has to go through (-12,36) which means that the y- intercept has to be 36.
The new equation would be y = 3/4x + 36.
Here is a graph to prove my point.
The red one is the original, the blue one is the one parallel to the original.
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4 0
3 years ago
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