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3 years ago

A beach umbrella has a circumference of 8.8 feet what is the radius of an umbrella?

Mathematics

1 answer:

nasty-shy [4]3 years ago

8 0

Answer:

radius = 1.4

Step-by-step explanation:

The formula for circumference is as follows:

$C = d\pi$

$C = 2r\pi$

However, these formulas are the same, because the diameter is equal to the radius times 2. I prefer to use the first (it gives you less values to work with).

Anyhow, We would substitute like this:

$8.8 = d\pi$

We know that pi, is going to be equal to: 3.14159

So we work from there...

$8.8=d(3.14159)\\2.8011=d$

Diameter divided by 2 would be the radius, and thats:

1.4006

or 1.4

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3 years ago

What percent of 300 is 51

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Answer:

Step-by-step explanation:

300:51*100 =

(300*100):51 =

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Now we have: 300 is what percent of 51 = 588.24

Question: 300 is what percent of 51?

Percentage solution with steps:

Step 1: We make the assumption that 51 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$x.

Step 3: From step 1, it follows that $100\%=51$100%=51.

Step 4: In the same vein, $x\%=300$x%=300.

Step 5: This gives us a pair of simple equations:

$100\%=51(1)$100%=51(1).

$x\%=300(2)$x%=300(2).

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

$\frac{100\%}{x\%}=\frac{51}{300}$

100%

x%=

300

Step 7: Taking the inverse (or reciprocal) of both sides yields

$\frac{x\%}{100\%}=\frac{300}{51}$

100%=

300

$\Rightarrow x=588.24\%$⇒x=588.24%

Therefore, 17% of 300 is 51

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A beach umbrella has a circumference of 8.8 feet what is the radius of an umbrella￼?

A beach umbrella has a circumference of 8.8 feet what is the radius of an umbrella?