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velikii [3]
3 years ago
15

50 points for good answ.

Mathematics
1 answer:
amid [387]3 years ago
5 0

Answer:

  • 2v

Step-by-step explanation:

Let the distance be d and average speed be v.

Half of the distance the speed was 2/3v

Let the speed be xv in the second half of the distance.

<u>Then time is:</u>

  • d/v = d/2 : (2/3v) + d/2 : (xv)
  • d/v = 3/4(d/v) + (1/2x)(d/v)
  • 1 = 3/4 + 1/2x
  • 1/2x = 1 - 3/4
  • 1/2x = 1/4
  • 2x = 4
  • x = 2

The rest of the road car has to ride with speed of 2v

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Indiras spring garden has half as many tulips as daffodils and three times as many hyacinths as tulips. If there are a total of
kow [346]

Indira is having 34 tulips, 68 daffodils and 102 hyacinths , altogether 204 flowers in her spring garden.

Given, In Indira's springtime garden, there are three times more hyacinths than tulips and half as many daffodils as tulips.

let the number of tulips be = x

    the number of daffodils be = y

    the number of hyacinths be = z

hence according to the question,

tulips are (x) = 1/2 (y) = y/2

hyacinths are (z) = 3(x) = 3x

therefore, total flowers = 204

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y/2 ₊ y ₊ 3x = 204

substitute x value in the above equation.

y/2 ₊ y ₊ 3(y/2) = 204

take LCM

y ₊ 2y ₊ 3y = 408

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y = 408/6

y = 68

hence the number of daffodils is 68.

now substitute y value in x = y/2

x = 68/2

x = 34

now substitute x value in z= 3x

z = 3(34)

z = 102

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Learn more about Solving equations here:

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1 year ago
which of the following answer choices describes all the transformation found in the cubic function f(x)=-(x+2)3-5
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2) reflect f(x) = (x + 2)^3 across the x-axis to obtain f(x) = - (x + 2)^3

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rusak2 [61]

Answer:

The change in the total cost for each book printed is $10

The cost to get started is $1250

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∵ x represents the number of copies of the book printed

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