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alex41 [277]
3 years ago
5

A spinner is evenly divided into 8 equal areas and numbered from 1 through 8. What is the probability of spinning a number less

than 3 in a single spin?
Mathematics
1 answer:
elena-s [515]3 years ago
5 0

less than 3 is a 1 or 2

probability of 1    or   probability of 2

        1/8               +            1/8

                        2/8

                    =  1/4

Answer: 1/4  = .25

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Ay bought a guitar on sale at 45% off. The original price was $576.75.
Mademuasel [1]

Answer:

a) $259.54    b) 317.21

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4 0
3 years ago
The curved surface area of a cylinder is 880cm2 and its volume is 770cm3.Find its diameter and height.
natima [27]

Answer:

The height of cylinder is: h = 80.07 cm

The diameter of cylinder is: d = 3.5 cm

Step-by-step explanation:

Curved surface area of cylinder = 880 cm^2

Volume of cylinder = 770 cm^3

We need to find its diameter and height.

The formula used are:

Curved\: surface\: area=2\pi rh\\Volume=\pi r^2h

If we divide volume by curved surface, we can find radius

\frac{Volume}{Curved\: surface\: area}=\frac{\pi r^2h}{2\pi rh}  \\\frac{770}{880}=\frac{r}{2}\\0.875=  \frac{r}{2}\\=> r= 0.875\times 2\\r=1.75

So, we get radius r = 1.75

Now, we can find height using curve surface area formula:

Curved\: surface\: area=2\pi rh\\880=2(3.14)(1.75)h\\h=\frac{880}{10.99}\\h=80.07 \:cm

So, the height of cylinder is: h=80.07 cm

Now finding diameter using formula: d=2r

Putting value of r in above formula:

d=2r\\d=2(1.75)\\d=3.5\:cm\\

So, the diameter of cylinder is: d = 3.5 cm

5 0
3 years ago
Which recurring decimal is equivalent to the Fraction shown ? 9/11
GrogVix [38]

Using a calculator would show that

9/11 = 0.818181\ldots = 0.\overline{81}

The horizontal line over top means the "81" repeats forever.

You can use long division as an alternative method to getting the answer above.

6 0
2 years ago
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