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omeli [17]
2 years ago
6

Please answer below :-)

Mathematics
1 answer:
Evgen [1.6K]2 years ago
3 0

Answer:

2\frac{7}{10}

Step-by-step explanation:

First, find the LCM and multiply through:

12(\frac{2x-1}{4} ) +12(\frac{x}{3})=12(2)

The LCM will cancel out the denominators (note that braket symbolizes Multiplication):

:3(2x-1) +4(x)=24

:6x-3+4x=24

Group like terms:

6x+4x=24+3

10x=27

Divide through by 10 to eliminate the coefficient of x

\frac{10x}{10}=\frac{27}{10}

: x=\frac{27}{10}=2\frac{7}{10}

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Vedmedyk [2.9K]
Huh come again? I’m not sure what you just said
6 0
3 years ago
-2(7a+ 9b) = –14a + [?]b
OverLord2011 [107]

Answer:

-18

Step-by-step explanation:

Left Hand Side = -2(7a + 9b) = -14a - 18b

Comparing it with Right Hand Side, ?  = -18

3 0
3 years ago
Read 2 more answers
Can you please help me thank you!!!
taurus [48]

Answer:

517.5 mi^2

Step-by-step explanation:

Divide shapes into 3 shapes ( 1 triangle and 2 rectangles

b = 17

h = 25

Area of triangle =  Bh

A =  (17)(25)

A = 212.5 mi^2

Area of 1st rectangle = lw = 17(9) = 153 mi^2

Area of 2nd rectangle = lw = 19(8) = 152 mi^2

Area of figure = 212.5 +153 + 152 = 517.5 mi^2

8 0
2 years ago
timothyis re-arranging his marbles collection. he has 5 identical blue marbles, five green and 3 black. he can fit excactly 5 ma
Lerok [7]
-- He must have at least one of each color in the case, so the first 3 of the 5 marbles in the case are  blue-green-black.

Now the rest of the collection consists of

                    4 blue
                    4 green
                    2 black

and there's space for 2 more marbles in the case.

So the question really asks:  "In how many ways can 2 marbles
be selected from 4 blue ones, 4 green ones, and 2 black ones ?"

-- Well, there are 10 marbles all together. 
So the first one chosen can be any one of the 10,
       and for each of those,
the second one can be any one of the remaining 9 .

Total number of ways to pick 2 out of the 10  =  (10 x 9)  =  90 ways.

-- BUT ... there are not nearly that many different combinations
to wind up with in the case.    

The first of the two picks can be any one of the 3 colors,
             and for each of those,
the second pick can also be any one of the 3 colors. 

So there are actually only 9 distinguishable ways (ways that
you can tell apart) to pick the last two marbles.
6 0
3 years ago
Why does it make sense for this graph to have a negative slope?​
alina1380 [7]

Answer:

the line is slanding to the left.

Step-by-step explanation:

Its gradient is negative

i.e y/x

therefore -2/2

=-1

6 0
3 years ago
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