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3 years ago

15 liters of water flow

Mathematics

1 answer:

Mariana [72]3 years ago

5 0

Answer:

Step-by-step explanation:

Since 15 liters of water flow through a water pipe and enter a tank within 4.5 minutes, the same amount of water would flow through a similar pipe at the same time. Therefore, if two similar water pipes are used, the volume of water that would flow into the tank in 4.5 minutes is 15 × 2 = 30 liters

Therefore, the time it will take to pump 727.5 liters of water into a water tank using 2 similar water pipes is

(727.5 × 4.5)/30 = 109.125 minutes

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Julio’s father is four times as old is Julio. The sum of their ages is no less than 55. Find the any quality that can be used to

rosijanka [135]

Answer:

Step-by-step explanation

dont really understand the question but you can see if it is the correct answer

represent julios age as x

represnt julios father age as 4x

so x+4x=5x

5x<55

not sure if this is correct bare that in mind

3 0

3 years ago

Sketch the graph of each line.<br> 2x-5y=25

ki77a [65]

Well, you transform the standard form equation into slope-intercept form (y=mx+b), since you can only graph it using this form.

First of all, the layout of the equation is $Ax+By=C$

So, in this case, A is 2, B is 5, and C is 25.

Now, to put it into slope intercept form, you either use the formula to change it and solve it:

$y= \frac{-A}{B}x+ \frac{C}{B} \\ y= \frac{-2}{-5}x+ \frac{25}{-5} \\ \\ y= \frac{2}{5}x-5$

Or you can just solve for y:

$2x-5y=25 \\ 2x-5y-2x=25-2x \\ -5y=-2x+25 \\ \frac{-5y}{-5}= \frac{-2x+25}{-5} \\ \\ y= \frac{2}{5}x-5$

In addition, I attached what the graph looks like.

Hope this helps!

3 0

3 years ago

What would -4/4 reduce too?

Nadusha1986 [10]

-1 is what you’d reduce it to

4 0

3 years ago

Read 2 more answers

A sea turtle swims at a speed of 27 km per h. A girl swims 14 dm per s. How much faster does the sea turtle swim than the girl i

arlik [135]

Let us convert both speeds to meters per minute.
The turtle:
27 km/ hr
1000 m in a kilometer
60 minutes in an hour
(27*1000)/60
= 450 m/min
The girl:
14 dm/ s
0.1 m in a dm
1/60 minutes in a second
(14*0.1)/(1/60)
= 84 m/min
The turtle is
450 - 84
= 366 m/min faster than the girl

5 0

3 years ago

The total cost, C, for running an advertisement in a local newspaper, The Free Press, is made up of an initial cost of $12 plus

allochka39001 [22]

There is no clear question here, however, the plan for the local newspaper, if the plan is long-term, is more comfortable for the consumers, but less comfortable if it is short-term.

Using a sample size of two days.

- For the local newspaper, we have

($5 × 2) + ($12) = $22

- For the rivals, we have

$8 × 2 = $16

Using a sample size of one hundred days.

- For the local newspaper, we have

($5 × 100) + ($12) = $512

- For the rivals, we have

$8 × 100 = $800

3 0

3 years ago