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2 years ago

If 11 is subtracted from twice a number the answer is 7. Find the number?

Mathematics

2 answers:

Art [367]2 years ago

8 0

Answer:

answer is 29

Step-by-step explanation:

x is your number and it subtract 11 two times

x-11-11=7

=x-22=7

=x=7+22=29

KonstantinChe [14]2 years ago

6 0

Answer:
9

Solution:

Write it in an algebraic form (x is your number)
2x-11=7
Now solve
2x=7+11=18
X=18/2=9

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The first 4 terms of a geometric sequence are 2, 6, 18, 54. Part A: Find the common ratio. Remember the common ratio is the numb

ra1l [238]

Answer:

Common ratio is 3

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Step-by-step explanation:

Given: The first 4 terms of a sequence are $2,6,18,54$

To find:

A. the common ratio

B. the next 3 values in the geometric sequence

Solution:

Geometric sequence is a sequence in which each of the terms is obtained by multiplying the previous term by a fixed number.

$\frac{6}{2}=3\\\\\frac{18}{6}=3\\\\\frac{54}{18}=3$

So, the common ratio is $3$

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