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3 years ago

15

Erin loves to play sports! She has earned 333 tennis trophies, 444 basketball trophies, 777 soccer trophies, and 111 volleyball

trophy.
What is the ratio of Erin's tennis trophies to soccer trophies?

2 answers:

Scilla [17]3 years ago

8 0

Answer:

78

Step-by-step explanation:

if u add them

lyudmila [28]3 years ago

6 0

Simplify 333 : 777

1 : 2 1/3

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GaryK [48]

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Let A(t) be the area of a circle with radius r(t), at time t in min. Suppose the radius is changing at the rate of drdt=6 ft/min

mylen [45]

Answer:

The rate of change is $108\pi$ ft^(2)/min

Step-by-step explanation:

The area of a circle is given by the following equation:

$A(t) = \pi r^{2}$

To solve this question, we have to realize the implicit differentiation in function of t. We have two variables, A and r. So

$\frac{dA(t)}{dt} = 2\pi r \frac{dr}{dt}$

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Since the area is in square feet, the rate of change is in ft^(2)/min.

So the rate of change is $108\pi$ ft^(2)/min

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