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ryzh [129]
3 years ago
5

A day? 6. If 18 pumps can raise 2150 tonnes of water in 50 days, working 8 hours a day, how much water will be raised in 60 days

by 16 out of which 10 are working 9 hours a day and the rest 7 hours a day?
​
Mathematics
1 answer:
Butoxors [25]3 years ago
5 0
Given, 18 pumps----2170 tonnes----10*7 hrs.
So, 16 pumps-------2170 tonnes----10*7*18/16 hrs.
And, 16 pumps-------1736 tonnes----10*7*(18/16)*(1736/2170)hrs. = 63 hrs.

So, no. of days req.= 63/9 = 7 days
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explanation:
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3 years ago
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Nimfa-mama [501]

First, make the mixed fraction into improper fraction,

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Hope this helps!

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3 years ago
PLS help ASAP this really urgent
MrMuchimi

Answer:

Skewed right.

Step-by-step explanation:

The graph is not symmetric because it's not an exact mirror of each side if you drew a line in the center. If the graph has highpoints on the left side and is leaning down to the right, it's skewed right. Same thing vice versa.

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A license plate has six characters. Three characters are letters, two characters are numbers (0-9), and one character is a lette
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and  two characters are numbers (0-9 - total 10 characters)∴ways of these 2 numbers into the plate with repetition=10×10 =100 ways

and one character is a letter or a number=26×10=260

So number of different license plates can be made =17576×100×260=456976000

Now Probability of getting a plate with abc123 or 123 abc

=P(abc123 or 123abc)=P(abc123)+P(123abc)-P(abc123)×P(123abc)=1/456976000+1/456976000-1/456976000×1/456976000

=1/456976000(1+1-1/456976000)

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3 years ago
Write the equation of the line that passes through the points (7,-6) and (0,2). Put
Alex

Answer:

y+6=\frac{-8}{7} (x-7)

Step-by-step explanation:

To find the slope of the equation use \frac{y_2-y_1}{x_2-x_1}.

So, \frac{-6-2}{7-0} = \frac{-8}{7}. Now we can use our slope and any of the two points to write in point-slope form, which is y-y_1=m(x-x_1). Using the point (7,-6), the formula will give y+6=\frac{-8}{7} (x-7).

To check, you can plug in this equation and the points into a calculator to graph. The line passes through both points.

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