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inessss [21]
3 years ago
8

Suppose that y varies directly with x. Given x=2.5 when y=100. Find y when x = 3

Mathematics
1 answer:
sergeinik [125]3 years ago
3 0

Answer

y=120

Step-by-step explanation:

2.5 ->100

3 -> y

y=(3*100)/2.5

y=120

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9514 1404 393

Answer:

  a) ∠DAE = 33°; ∠ABD = 57°

  b) ∠CEB = 90°

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  d) ∠ADE = 15°

Step-by-step explanation:

The diagonals of a rhombus meet at right angles. Each bisects the corner angles at its ends. Adjacent angles are supplementary, opposite angles are congruent, and each diagonal creates two isosceles triangles.

a) ∠DAE = 90° - ∠ADE = 90° -57°

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b) ∠CEB = 90° . . . . . the diagonals meet at right angles

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c) ∠ABE = 44°/2

  ∠ABE = 22°

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d) ∠ADE = 90° -(1/2)∠DAB = 90° -150°/2

  ∠ADE = 15°

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