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yanalaym [24]
2 years ago
6

2. The sum of k and 10 is 48

Mathematics
1 answer:
Amiraneli [1.4K]2 years ago
7 0

Answer:

k=38

Step-by-step explanation:

38+10=48

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Is any pair of equilateral triangles similar to each other? Why or why not?
myrzilka [38]

Answer:

They are similar because Since all the sides are equal in each triangle, the ratio of corresponding sides will all be equal

Step-by-step explanation:


7 0
3 years ago
Expanded form.2(b + c) *
11Alexandr11 [23.1K]

Answer:

Step-by-step explanation:

2b + 2c

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3 years ago
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Working together to palms can drain a certain pool in three hours if it takes the older pump nine hours to drain the pool by its
andreyandreev [35.5K]

Answer:

It would take the newer pump 4.5 hours to drain the pool

Step-by-step explanation:

Let's investigate first what is the fraction of the job done in the unit of time (hour in this case) by each pump if the work individually:

older pump: if it takes it 9 hours to complete the job, it does \frac{1}{9} of the job in one hour.

newer pump: we don't know how long it takes (this is our unknown) so we call it "x hours". Therefore, in the unit of time (in one hour) it would have completed \frac{1}{x} of the total job.

both pumps together: since it takes both 3 hours to complete the job, in one hour they do \frac{1}{3} of the job.

Now, we can write the following equation about fractions of the job done:

<em>The fraction of the job done by the older pump plus the fraction of the job done by the newer pump in one hour should total the fraction of the job done when they work together.</em> That is in mathematical terms:

\frac{1}{9} +\frac{1}{x} =\frac{1}{3}

and solving for x:

\frac{1}{9} +\frac{1}{x} =\frac{1}{3} \\x+9=3x\\2x=9\\x=\frac{9}{2} \,\,hours\\x = 4.5\,\,hours

4 0
3 years ago
Find the area of the trapezoids
IceJOKER [234]
16 would be the answer.
3 0
2 years ago
PLEASE HELPPP
denpristay [2]

Answer:

390.8ml

Step-by-step explanation:

1.954 divided by 5=0.3908 litres

0.3908liters=390.8ml

5 0
2 years ago
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