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dlinn [17]
3 years ago
7

What is the value of the expression when n = 3?

Mathematics
2 answers:
xz_007 [3.2K]3 years ago
8 0
Please provide the context of problem
olya-2409 [2.1K]3 years ago
3 0

Answer:

the answer is 54

Step-by-step explanation:

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(5) Rhea ran 6 laps on a track. Each lap is 200 yards. Rhea's average speed for
sashaice [31]

Answer:

72 yd / min

Step-by-step explanation:

The first thing is to fully calculate the distance traveled, each lap is 200 yards and how 6 laps would be:

200 * 6 = 1200

Now, let's divide the race into how the statement tells us:

1200 * 2/3 = 800

1200 * 1/3 = 400

That is, in the first 800 yards it goes to 80 yd / min and then in the remaining 400 yards it goes to 60 yd / min, let's calculate the time Rhea lasted:

800/80 = 10 min

400/60 = 6,667 min

Which means that in total it would be:

10 + 6,667 = 16,667

In other words, Rhea took 16,667 minutes to travel 1,200 yards, so the speed would be:

1200 / 16,667 = 72

Therefore the average Rhea speed was 72 yd / min

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3 years ago
Solve the system of equations using the substitution method. Show your work and be sure to include the solution to the system y=
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Answer:

Is that simultaneous equation

6 0
2 years ago
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Solve 100 ÷ 5 × 4 + 43<br> A. 69 <br> B 144<br> C 0.3<br> D 1.2
Liula [17]
100/5= 20
20 x 4 = 80
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if my math is correct then none are correct
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16+(c+17)=(16+c)+17 ....what property is this?
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It's is the Associative Property. I hope that helps!
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What is 5 4/6 as an improper fraction?
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34/6. You do 5 x the 6, then add the 4
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