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3 years ago

What is the number that follows in this sequence y-1, 2y, -2, 4y-4, 8y-8, __ ??

Mathematics

2 answers:

photoshop1234 [79]3 years ago

7 0

16, because the pattern is to double the number each time. If you liked my answer please mark it the brainiest

Varvara68 [4.7K]3 years ago

4 0

Given the sequence, the rule appears to be 2n.
(Y-1)2 must be distributed. The result is 2Y - 2. 2(2Y-2) = 4Y-4.
2(4Y - 4) = 8Y - 8.
The same rule will apply throughout the sequence.
2(8Y-8) must be distributed. To distribute we multiply the outside number (2) by the inside numbers (8Y-8).
(2x8Y) + (2x-8)
16Y - 16 is our result.
Hope this helps!

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Step 1:

First, find the total number of students.

Let the total number of students = m

Step 2:

Find the total number of students using the percentage of 4 books.

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