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s344n2d4d5 [400]
3 years ago
7

20. How many minutes would it take a train to travel

Mathematics
2 answers:
schepotkina [342]3 years ago
6 0
Answer to your question is 45
vladimir1956 [14]3 years ago
3 0

Answer:

45

Step-by-step explanation:

Every 15 minutes, 30 kilometers are passed by.

15/60 = 1/4 hour

30/120 = 1/4 speed

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Which graph represents the sequence: 80, -40, 20
ANEK [815]
<span> 80/-40=-40/20=-2, 
the sequence: 80, -40, 20 is a geometric sequence
its general formula is Vn+1 = q Vn, where q= -2,
if we put </span>Vn+1 = f(x)
<span>               Vn = x 

so we have f(x)= -2x so the graph that represents the sequence is graph of linear equation

</span>
8 0
3 years ago
Find the value of 3a + 7b if a=6 and b=4
EastWind [94]

Answer:

The answer would be 46. Hope this helps!

8 0
2 years ago
1200 students attend Ridgewood Junior High School. 5% of students bring their lunch to school everyday. How many students brough
pantera1 [17]

Answer:

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Step-by-step explanation:

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2 years ago
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