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TEA [102]
3 years ago
12

21/80 in a simplified fraction

Mathematics
2 answers:
mihalych1998 [28]3 years ago
8 0
It cant be simplified.................
Likurg_2 [28]3 years ago
6 0
21/80 is in simplified form...it will not reduce
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A freight train leaves a station and travels north at 60 mph. 4 hours ​later, a passenger train leaves on a parallel track and t
harkovskaia [24]

Answer:

first do:

60mph * 4 hours= 240mi

Let D = the distance the passenger train has to  

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Start a stopwatch when the passenger train leaves

Let t = the time on the stopwatch when they meet

Equation for freight train:

d-240=60t

Equation for passenger train:

d=100t

all together:

100t-240=60t

we can do 100t-60t because they both have (t)= 40t

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THEN do:

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slamgirl [31]

Answer:

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2 years ago
What is -11/8 + -11/4
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Answer:

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