Answer:
Step-by-step explanation:
Answer:
District 221221221. I'm not really sure cause last days of snow each school district some of the school tallied
(It might also have helped immensely if you had been listening
when this was being explained in class.)
The first pipe fills 1/20 of the tank each minute.
The second pipe fills 1/30 of the tank each minute.
Operating together, the two pipes fill ( 1/20 + 1/30 ) of the tank each minute.
In order to add these fractions (or any fractions), you need a common denominator.
For these particular ones, ' 60 ' is a good choice.
( 1/20 + 1/30 ) = ( 3/60 + 2/60) = 5/60 = 1/12
The rate of work is 1/12 tankful per minute .
The most sensible choice for the time is 12 minutes.
R x T = W
( 1/12 tankful per minute ) x ( 12 minutes ) = 1 full tank
Answer:
24.25 in²
Step-by-step explanation:
s = (a + b + c)/2 = (8 + 13 + 7)/2 = 14 in
s - a = 6, s - b = 1, s - c = 7
so
the area = 
Answer:
1.75 or 
Step-by-step explanation:
2.5 * 7/10 is just like 2.5 * 0.7
so 2.5 * 0.7 = 1.75
You could also convert 2.5 to fraction which is 25/10
so you would have 
= 
reduced would equal
How this helps you! :)
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