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3 years ago

7

The following sequence is geometric. What is the next term?

2 answers:

Kruka [31]3 years ago

7 0

A geometric sequence is one where you multiply each number in the sequence by the same number. Here, obviously the number which you multiply by is 3, because 12 * 3 = 36, 36 * 3 = 108, 108 * 3 = 324, and in order to finish the sequence, you multiply 324 by 3 and get 972.
The correct answer is 972.

scZoUnD [109]3 years ago

5 0

The sequence is multiplying the last number by 3, the correct answer is 972.

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3 years ago

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Olegator [25]

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Let X be the number of days:

a)

For LESSONS:

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For TESTS:

Jordan does 5 / day ( 5*X)

Marco 10 / day ( 10*X)

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b) $5X+10X+8X = 300 => 23X = 300 => X = 13.04$ days for the tests

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b) $5X+10X = 300 => 15X = 300 => X = 20$ days for the tests

so in 20 days they will finish without him

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