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Montano1993 [528]
2 years ago
9

Larry recorded his time as he ran. What was his average speed from hour 2 to hour 4?

Mathematics
2 answers:
Korolek [52]2 years ago
5 0

Answer:

7 mph

Step-by-step explanation:

i took the same test on edg

wolverine [178]2 years ago
3 0

Answer:

4-2=2

Step-by-step explanation:

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Step-by-step explanation:

You can split the coins into 3 groups, each of them has 3 coins. Weigh group 1 vs group 2, if one is lighter, that group has the fake coin. If both groups weigh the same, then group 3 has the fake coin.

Continue to split the group that has the fake coin into 3 groups, each group has 1 coin. Now apply the same procedure and we can identify the fake coin.

Total of scale usage is 2

b) if you have 3^n coins then you can apply the same approach and find the fake coin with just n steps. By splitting up to 3 groups each step, after each step you should be able to narrow down your suspected coin by 3 times.

Step 1: you narrow down to group of \frac{3^n}{3} = 3^{n-1} coins

Step 2: you narrow down to group of \frac{3^{n-1}}{3} = 3^{n-2} coins

Step 3: you narrow down to group of \frac{3^{n-2}}{3} = 3^{n-3} coins

...

Step n: Step 1: you narrow down to group of 3^{n-n} = 3^0 = 1coin

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3 years ago
Quadrilateral ABCD has the following vertics:A( -3,0) B (7,2) C (1,-4) D (-9,-6) is Quadrilateral A B C D a parallelgram, and wh
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in my opinion I think it parallelogram because it has four sides which are A,B,C,D

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3 years ago
Fayzansabeel is a very brainly user!!!
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2 years ago
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A flower bed has the shape of a rectangle 7 yards long and 3 yards wide. what is its area in square feet? be sure to include the
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3 years ago
Michael has $1,059.35 in his checking account. He is going to spend $466.43 on a new television, and he will spend the rest on s
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Answer:

D. $43.00x + $466.43 < $1,059.35

Step-by-step explanation:

He has $1,059.35.

The amount of speakers he buys is x.

Each speaker is $43.00, and he is buying one television, which is $466.43.

All of the speakers he buys and(+) the television must be less than $1,059.35 because that's all he has. It cannot be more, which is why the equation is $43.00x + $466.43 < $1,059.35.

Hope this helps!

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2 years ago
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