The diameter of the new rubber ball, to the nearest foot, must be D = 4.0 ft (in the case of the maximum cost).
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How to find the diameter of the ball?</h3>
Remember that for a sphere of diameter D, the surface area is:
A = 4*pi*(D/2)^2
In this case, the cost is $0.02 per square foot, and the company wants to expend (at maximum) $1 per ball, so first we need to solve:
$0.02*A = $1
A = $1/$0.02 = 50
So the surface of the ball must be 50 square feet.
Then we solve:
50ft^2 = 4*3.14*(D/2)^2
D = 2*√(50 ft^2/(4*3.14)) = 4.0 ft
If you want to learn more about spheres, you can read:
brainly.com/question/10171109
Sorry i got nothing for you .. but i'll try to solve it shortly.
Answer:
Step-by-step explanation:
Let
x -----> the number of weeks worked by Bess
y ----> the number of weeks worked by Gina
we know that
The total money earned by Bess and Gina for delivering flowers, is equal to the sum of the number of weeks worked by Bess and Gina. all multiplied by the weekly rate of $45 plus an additional total bonus of $20
so
The expression that represent this situation is
Distribute
Rewrite
Answer:
135%, 74%
Step-by-step explanation:
a. 540/400=1.35=135%
b.400/540=.74=74%
