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2 years ago

A

Mathematics

1 answer:

Gre4nikov [31]2 years ago

7 0

Answer:

3,25-2,5=0,75 it is equal to 3/4 so D

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Andrew calculates that 40 % 40% of 50 % 50% of x x is equal to 20 % 20% of 30 % 30% of y y, where x ≠ 0 x≠0. Which of the follow

Shtirlitz [24]

Answer:

Step-by-step explanation:

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3 years ago

I need help plss its hard for me pls help and show the WORK plsss

My name is Ann [436]

Is there a picture of the question?

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2 years ago

What is the solution of 3+x-2/x-3<_4

VikaD [51]

Step-by-step explanation:

3+x-2/x-3<_4

cross multiply

3+x-2<_4(x-3)

3+x-2<_4x-12

1+x<_4x-12

collect like terms

1+12<_4x-x

13<_3x

divide both side by 3

13/3<_×

6.5<_x

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3 years ago

Is the sequence geometric? if so, identify the common ratio 1/5,2/15,4/45,8/135,16/405,...

Romashka-Z-Leto [24]

So have the sequence: $\frac{1}{5} , \frac{2}{15} , \frac{4}{45} , \frac{8}{135} , \frac{16}{145} ,...$
To check if the sequence is geometric, we are going to find its common ratio; to do it we are going to use the formula: $r= \frac{a_{n} }{a_{n-1}}$
where
$r$ is the common ratio
$a_{n}$ is the current term in the sequence
$a_{n-1}$ is the previous term in the sequence
In other words we are going to divide the current term by the previous term a few times, and we will to check if that ratio is the same:

For $a_{n}= \frac{2}{15}$ and $a_{n-1}= \frac{1}{5}$ :
$r= \frac{ \frac{2}{15} }{ \frac{1}{5} }$
$r= \frac{2}{3}$

For $a_{n}= \frac{4}{45}$ and $a_{n-1}= \frac{2}{15}$ :
$r= \frac{ \frac{4}{45} }{ \frac{2}{15} }$
$r= \frac{2}{3}$

For $a_{n}= \frac{8}{135}$ and $a_{n-1}= \frac{4}{45}$ :
$r= \frac{ \frac{8}{135} }{ \frac{4}{45} }$
$r= \frac{2}{3}$
As you can see, we have a common ratio!

We can conclude that our sequence is a geometric sequence and its common ratio is $\frac{2}{3}$

7 0

3 years ago

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Came

lapo4ka [179]

Answer:

305

Step-by-step explanation:

100×8=800

240÷800 = 0.3

0.3×100=30%

6 0

3 years ago

Read 2 more answers