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umka2103 [35]
4 years ago
6

an air conditioning system can circulate 360, cubic feet of air per minute. how many cubic yards of air can it circulate per min

ute?
Mathematics
2 answers:
I am Lyosha [343]4 years ago
8 0
There are 3 feet in a yard so 360/3=120 so 120 yards per minute
ahrayia [7]4 years ago
3 0

Alright, lets get started.

3 feet = 1 yard

If we cube both sides of the equation, we will get the conversion into cubic yards

So,

3*3*3 cubic feet = 1 * 1*1 cubic yards

27 cubic feet = 1 cubic yards

So, 1 cubic feet = \frac{1}{27} cubic yards

So, 360 cubic feet = 360 *\frac{1}{27} cubic yards

So, 360 cubic feet = 13.33 cubic yards

13.33 cubic yards of air can it circulate per minute. : Answer

Hope it will help :)



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11111nata11111 [884]

Answer:

The error E = ± 4.04 %

Step-by-step explanation:

Solution:-

- The sample data is used to estimate the population proportion ( p ).

- The success p^ = success percentage = 40 %

- The confidence interval CI = 98%

- The sample size n = 800

- The margin of error E:

- The margin of error "E" for estimation of population proportion ( p ) is given by:

                          E = z-critical*\sqrt{\frac{p~ ( 1 - p~ )}{n} }

Where, Z-critical value is defined by the significance level:

                         P ( Z < Z-critical ) = α / 2

Where, α : Significance level

                          α = 1 - CI

                         P ( Z < Z-critical ) = (1 - 0.98) / 2

                         P ( Z < Z-critical ) = 0.01  

                         Z-critical = 2.33

- The error E of estimation is:

                        E = 2.33*\sqrt{\frac{0.4 ( 1 - 0.4 )}{800} }\\\\E = 0.04035

- The error E = ± 4.04 %

6 0
3 years ago
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leonid [27]

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B) Multiply by 3/2 on both sides of the equation by the multiplication property of equality

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3 years ago
Find the quotient<br>- 72<br>-8​
viva [34]

Answer:

9

Step-by-step explanation:

72/8=9

5 0
3 years ago
Help .<br> i need help with something like this
In-s [12.5K]

The width of a book is 1.5 inches.

The total width of 79 books is 1.5×79

= 118.5 inches.

The cost of a 34.5 inch wide shelf is $12.95

Therefore, the cost of a 118.5 inch wide shelf will be:

(Let the cost of the 118.5 inch wide shelf be x)

\frac{34.5}{12.95}  =  \frac{118.5}{x}  \\ cross \: multipy \\ 34.5x = 118.5 \times 12.95 \\ x =  \frac{118.5 \times 12.95}{34.5}  \\ x = 44.48

x= $44.48

5 0
2 years ago
An electrician charges $40 dollars to come to your house. She also charges $55 for each hour that she works. The electricion cha
Alexxx [7]

Answer:

your question doesn't make sense if an electrician came to your house it would cost $40 then $55 dollars per hour but there is no way that you can solve that (40+(55•2)=150+55=205 which is already over $190 dollars

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