2 years ago

What value of x makes this equation true? 15-7x=5x-21

Mathematics

1 answer:

belka [17]2 years ago

4 0

Answer:

x=3

Step-by-step explanation:

15-7x=5x-21

12x=36

x=3

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What is the seventh term of a sequence whose first term is 1 and whose common ratio is 3?

ikadub [295]

$\bf n^{th}\textit{ term of a geometric sequence}\\\\
a_n=a_1\cdot r^{n-1}\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
a_1=1\\
r=3\\
n=7
\end{cases}
\\\\\\
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2 years ago

What number is a factor of 12,but not a multiple of 3

choli [55]

There are 3 numbers as such.
First lets list all the factors of 12
1,2,3,4,6,12
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3 years ago

Read 2 more answers

A small town had a population 960 people last year. The population grew to 1200 people this year. By what percentage did the pop

Rufina [12.5K]

Answer:

25%

Step-by-step explanation:

1200/960 = 1.25

So it grew by 25%

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2 years ago