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Anon25 [30]
3 years ago
9

The construction of an 80-meter bridge was finished in 12 weeks. How much of the bridge was built on average each week?

Mathematics
1 answer:
VMariaS [17]3 years ago
3 0

Answer: <em>6.6 meters a week</em>

Step-by-step explanation:

<em>This problem is quite simple</em>

<em>You take 80 and divide it by 12</em>

<em>80/12 </em>

<em>which equals</em>

<em>6.6</em>

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Answer:

9 times

Step-by-step explanation:

Area = length x breadth

area of picture not enlarged = 3 x 5 = 15in²

If length is tripled it becomes , 3 x 3 = 9in

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Area of enlarged picture = 9in x 15in = 135in²

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Dima020 [189]
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Answer:

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An arithmetic sequence "a" starts with 84, 77 define "a" recursively
sweet [91]

Answer:

First, let's define an arithmetic sequence:

In an arithmetic sequence, the difference between any two consecutive terms is always the same.

Then we can write it in a general way as:

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Now in this case we know that the first terms of our sequence are:

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Then we know the initial term of our sequence:

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And the value of d can be calculated as:

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Then the general way of writing this sequence is:

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And the recursion relation is:

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