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Otrada [13]
3 years ago
6

Please answer me this question ​

Mathematics
1 answer:
In-s [12.5K]3 years ago
7 0

Answer:

x=0.4 and y=0.6

Step-by-step explanation:

Given :

\frac{x}{2} +y=0.8\\x+2y=1.6.......(1)\\\frac{7}{x+y/2} =10\\\frac{7}{2x+y/2} =10\\\frac{7*2}{2x+y} =10\\\frac{14}{2x+y} =10\\14=10(2x+y)\\14=20x+10y.....(2)

From solving above equation (1) and (2)

x=0.4

y=0.6

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3 years ago
Which is the best estimate for the diagonal of a rectangle with a width of x and a length of 2x, if x is 1.33?
german

The best estimate for the diagonal of the rectangle is 3 ⇒ B

Step-by-step explanation:

In a rectangle:

  • The length and the width are perpendicular
  • The length of its diagonal = \sqrt{(length)^{2}+(width)^{2}} (the diagonal is the hypotenuse of a right triangle whose legs are the length and the width of the rectangle)

∵ The width of a rectangle = x

∵ The length of the rectangle = 2x

∵ The diagonal = \sqrt{(length)^{2}+(width)^{2}}

- Substitute the length by 2x and the width by x

∴ The diagonal = \sqrt{(2x)^{2}+(x)^{2}}

∴ The diagonal = \sqrt{4x^{2}+x^{2}}

∴ The diagonal = \sqrt{5x^{2}}

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- Substitute the value of x by 1.33 to find the diagonal

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∴ The diagonal = 2.973

∴ The diagonal ≅ 3

The best estimate for the diagonal of the rectangle is 3

Learn more:

You can learn more about the rectangles in brainly.com/question/13084321

#LearnwithBrainly

6 0
3 years ago
In a breakfast cereal, 40% of its weight is fruit.
Dmitry [639]
A 2/5 or 2:3
b 25% or 1/4
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4 0
4 years ago
Read 2 more answers
What is the GCF of 24 and 20
mestny [16]
Hey there!

Let's find out!


20: 1,2,4,5,10,20

24
1,2,3,4,6,8,12,24

answer
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5 0
4 years ago
Read 2 more answers
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