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alexandr402 [8]
3 years ago
5

Greg needs at least $1.60 in stamps to mail a package. He has 28 cents and 4 cent stamps. He can use no more than twenty 4 cent

stamps as he only has one book left.
Mathematics
1 answer:
klemol [59]3 years ago
4 0

Answer:

I am sorry but, I do not understand what the question is.

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mestny [16]

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To know if the equation is true, you need to write it down on a piece of paper and see if you get the results.

Step-by-step explanation:

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Write the recurring decimal 0.5 as a fraction in its simplest form.​
sergejj [24]

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0.5×2/2=1/2 is the required fraction.

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Help please This is 8th grade made. I put 13 but Idk if it's correct
Rom4ik [11]
The answer is the square root of (12^2 + 5^2), which is 13. You're correct
5 0
3 years ago
Hi does anyone know how to solve this question if so please show the working out.
tester [92]

Explanation:

The Law of Sines is your friend, as is the Pythagorean theorem.

Label the unmarked slanted segments "a" and "b" with "b" being the hypotenuse of the right triangle, and "a" being the common segment between the 45° and 60° angles.

Then we have from the Pythagorean theorem ...

  b² = 4² +(2√2)² = 24

  b = √24

From the Law of Sines, we know that ...

  b/sin(60°) = a/sin(θ)

  y/sin(45°) = a/sin(φ)

Solving the first of these equations for "a" and the second for "y", we get ...

  a = b·sin(θ)/sin(60°)

and ...

  y = a·sin(45°)/sin(φ)

Substituting for "a" into the second equation, we get ...

  y = b·sin(θ)/sin(60°)·sin(45°)/sin(φ) = (b·sin(45°)/sin(60°))·sin(θ)/sin(φ)

So, we need to find the value of the coefficient ...

  b·sin(45°)/sin(60°) = (√24·(√2)/2)/((√3)/2)

  = √(24·2/3) = √16 = 4

and that completes the development:

  y = 4·sin(θ)/sin(φ)

6 0
3 years ago
What is the missing length?<br> 20 cm<br> area = 580 cm
Ludmilka [50]

Answer:

580 / 20 = 29 cm = P

7 0
2 years ago
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