Go on www.maths is fun.com (no spaces) and search in scientific notation. The website is very helpful.
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we need to find the area of a circle with a radius of 21.
we also need a formula for this, which is
⇒
the known value is r, radius, 21.
after substituting the value into the formula, we obtain:
⇒
now we multiply the radius times itself:
⇒
<u>which can be</u> <u>written</u> <u>as</u>
<u />
<u>⇒</u>
and finally, multiply the values
⇒
by:
have a great rest of your day ahead ~ = )
When you add something, you gain more of it. Therefore, it should be positive 2
2
To solve this answer, you are trying to find 55% of 600, because that is the number of people who chose plastic bag.
55% can be re-written as 55/100 OR 0.55 since percentages are always out of 100.
So, we do 0.55*600, which gives us 330. 330 people carry plastic bags.
Answer:
80%
Step-by-step explanation:
Please consider the complete question:
Micah is preparing for a piano recital. He practices for 50 minutes on Monday and 90 minutes on Wednesday. By how much did she increase the time she practiced each day?
We will use percent change formula to solve our given problem.
Upon substituting our given values, we will get:
Therefore, Micah had increased the time by 80%.