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devlian [24]
3 years ago
7

A spherical ball has a diameter of 8 inches.The ball has a slow leak in which the air escapes at the rate of 2.5 cubic inches pe

r second. How long would it take the ball to deflate?
Mathematics
1 answer:
Sphinxa [80]3 years ago
4 0
The formula for volume of a sphere is 4/3pi(radius)^3

So 4/3(3.14 - better to use the pi button on your calculator)(4 cubed)
 
Punch into calculator (And I mean PUNCH that thing)

Volume = 268.08 in.^3. Divide this by 2.5 = 107.23 seconds.
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How to make 2700 and 600 a fraction
devlian [24]
I think I may be missing something ... I don't completely understand your question. 
All you need to make a fraction is two numbers and a bar.  The bar can be either
horizontal or slanty.  Then you write one number on top and the other number on
the bottom, and bada-bing, you have a fraction.

You can make fractions like

             2700 / 600
                 27 / 6         
                   9 / 2           (all 3 of these have the same value)

             600 / 2700
                 6 / 27         
                 2 / 9              (all 3 of these have the same value) 
8 0
3 years ago
1. r-8/5=-4/11<br> 2. 9a/a+4= 3/5
BigorU [14]

Answer:

1 r= 68/55

2 no solution

Step-by-step explanation:

3 0
3 years ago
HELP FAST DUE IN 10 minutes WILL MARK BRAINLIEST SOMEONE PLEASE HELP
WARRIOR [948]

Answer:

your answer is correct -7,-2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Someone please help me!
Vlad1618 [11]

Answer:

A. x \leq -16  

B. b > 11

C. c \leq -13

D. x \geq -9

Step-by-step explanation:

<u>Given the following algebraic expression;</u>

A. \frac {3x}{4} \leq 12

We would simplify the equation by multiplying all through by 4;

4 * \frac {-3x}{4} \leq 12 * 4

-3x \leq 48

Divide both sides by -3;

x \leq -16

B. 5b - 28 > 27

Rearranging the equation, we have;

5b > 27 + 28

5b > 55

Divide both sides by 5

b > 11

C. 13c \leq -169

Divide both sides by 13

c \leq -13

D. 3x - 7 \geq 4x + 2

Collecting like terms, we have;

3x - 4x \geq 2 + 7

-x \geq 9

Divide both sides by -1

x \geq -9

8 0
3 years ago
You can take bus 65 or bus 79 to get to work. you take the first bus that arrives. the probability that bus 65 arrives first is
navik [9.2K]
I dont get how to work this one out give me a secod
7 0
3 years ago
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