PLEASE HELP , PLEASE PLEASE HELP
2 answers:
Your answer is,
In classical geometry, a radius of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length. The name comes from the Latin radius, meaning ray but also the spoke of a chariot wheel.
<h3><u>How to find a radius of a circle</u></h3>Just remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter. The radius of the circle is 3.5 feet. You can also use the circumference and radius equation.
Thus, <u>option a</u> is your answer.
Learn more about radius of a circle here
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<h3>They should charge $2.68 per lemonade serving in order to earn $20 profit in total.</h3>
Step-by-step explanation:
The amount spent on the ingredients = $20.16
The number of servings prepared = 15
The profit to b made in total = $20.00
Let us assume the minimum selling amount of per serve of lemonade = $ m
So, the selling amount of 15 per serving = 15 x ( cost of each serving)
= 15 x ( $ m) = 15 m
Now, Profit = Total Selling price - Total Cost price
⇒ $20 = 15 m - $20.16
or, 40.16 = 15 m
or, m =
⇒ m = 2.6773333
Now, rounding off to nearest hundredth, as 7 > 5 so 2,677333 ≈ 2.68
Hence, they should charge $2.68 per lemonade serving in order to earn $20 profit in total.