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AfilCa [17]
3 years ago
15

The answer is 48 I just don’t know how to get there. Please solve using proportions and show me

Mathematics
1 answer:
OleMash [197]3 years ago
3 0

Answer:

x=48

Step-by-step explanation:

What number out of 75 gives you 64%

What number out of 75 gives you 64 out of 100

x                    64

------------ = -----------

75                 100

Using cross product

100x = 64*75

100x =4800

Divide each side by 100

100x/100 = 4800/100

x=48

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Answer:

Dear student,

Answer to your query is provided below

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Step-by-step explanation:

Total no. Of cards = 52

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Prob. Of drawing 2 = 4/52

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Solve the following system of equations:
Vladimir79 [104]

Answer:

<u><em>(-1,1)</em></u>

Step-by-step explanation:

We can solve this by either graphing and finding ther point the lines intersect, or mathematically,  I'll do both.

<u>Graphing:</u>

<u>Mathematically:</u>

−2x + 4y = 6

y = 2x + 3

See the attached graph.  The lines intersect at (-1,1)

--------------------

I'll rearrange the first equation (to make it easier for me):

−2x + 4y = 6

4y = 2x + 6

y = (1/2)x + 1.5

Now lets substitute the second equation into the first so that we can eliminate y:

y = 2x + 3

[(1/2)x + 1.5] = 2x + 3

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=================

Both approaches give us (-1,1), the solution to the system of equations.  It is the only point that satisfies both equations.

3 0
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