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Reika [66]
3 years ago
6

Solve, using the substitution method.

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
4 0
Y - 2x = 8 . . . . . . . . (1)
16 + 4x = 2y . . . . . .(2)
From (1), y = 8 + 2x
substituting for y into (2), we have
16 + 4x = 2(8 + 2x) = 16 + 4x
0 = 0
Therefore, there are an infinite number of solutions
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Answer:

Step-by-step explanation:

Perimeter of a triangle equals side 1 plus side 2 plus side 2

           P = s1 + s2 + s3                 side 1 = side 2 =  x

                                                     x/side 3 = 5 / 3

                                                     x  = (5/3) side 3

                                                     x (3/5)  = side 3

                                                 

                                                     perimeter = 65    slove for x

          65  = x + x + 3x/5

         325  = 5x + 5x + 3x

         325  = 13X

          25   = x    equal side 1 and side 2  

          side 3 = 25(3/5)  = 15

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Answer:

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Step-by-step explanation:


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Brahmagupta's book is the oldest text representing zero
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Understanding zero as a number represented by the symbol 0 enabled mathematicians to have a representation of nothing. Having a digit to represent zero enables mathematics to be more abstract, and allows more complex problems to be solved.

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