3 years ago

Is 21/2 simplified ?

Mathematics

1 answer:

Sati [7]3 years ago

6 0

Answer: 21/2 can not be simplified anymore!!

Step-by-step explanation:

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A circle of a certain radius has an area which is numerically 5 times the value of the circumference. What is the radius of the

patriot [66]

We have been given that a circle of a certain radius has an area which is numerically 5 times the value of the circumference. We are asked to find the radius of the circle.

We know that area of circle with a radius of r units is $\pi r^2$ .

We know that circumference of a circle is $2\pi r$ .

5 times the value of circumference would be $5(2\pi r)=10\pi r$ .

Now we will equate 5 times circumference with area as:

$\pi r^2 = 10\pi r$

Let us solve for r.

$\pi r\cdot r = 10\pi r$

$\frac{\pi r\cdot r}{\pi r}=\frac{10\pi r}{\pi r}$

$r=10$

Therefore, the radius of the circle would be 10 units.

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A shop has a sale of 30% off all items in stock. If the original price of a dress is £20 what would be its sale price?

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2 years ago

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a number is divided by 3 and the result is added to 1. the new result is doubled to give the final result 80. whats the number

Gnesinka [82]

78, because you have to do the inverse operation so 80/2= 40 then 40-1= 39 and 39*3 = 78

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4 years ago

What is 689 divided by 24

ozzi

28.7083333333...
But you could also round it up to 29.

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