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atroni [7]
3 years ago
13

While flying against the wind, the plane covered 1800 km in 2 hours and 40 minutes. On the return flight it spent 16 minutes les

s because the plane was moving on the direction of the wind. What was the speed of the wind and the speed of the plane?
Mathematics
1 answer:
zavuch27 [327]3 years ago
3 0

Answer:

you should just use an online caculatur

Step-by-step explanation:

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Which expression can be used to check the answer to 56 ÷ (-14) = n?
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Find the common ratio and an explicit form in each of the following geometric sequences.
Margaret [11]

Answer:

The explicit form is a_{n}=162(2/3)^{n-1}

Step-by-step explanation:

The explicit form of a geometric sequence is given by:

a_{n}=ar^{n-1}

where an is the nth term, a is the first term of the sequence and r is the common ratio.

In this case:

a=162

The value of the common ratio is obtained by dividing one term by the previous term.

For the first and second terms:

108/162=2/3

For the second and third terms (In order to prove that 2/3 is the common ratio)

72/108=2/3

Therefore:

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Replacing a and r in the formula:

a_{n}=162(2/3)^{n-1}

7 0
3 years ago
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What is the answer? -56×(78- 23)÷4?
Salsk061 [2.6K]
Since (78-23) is in the bracket, you need to perform the operation of minus first.
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5 0
3 years ago
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