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3 years ago

What is the next number in the sequence? 3, 6, 12, , ... place an x by the pattern of the sequence. add 2 subtract 2 times 2?

1 answer:

8 0

3,6,12...

this is a geometric sequence with a common ratio of 2. That means u multiply each term by 2 to find the next term.

start with 3
3 * 2 = 6
6 * 2 = 12
12 * 2 = 24...this would be ur next term

so ur answer is : multiply by 2

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How can i solve the following <br> 4x-3=2x+7

yan [13]

Answer:

x = 5

Step-by-step explanation:

Note the equal sign, what you do to one side, you do to the other. Isolate the variable, x.

Add 3 and subtract 2x from both sides of the equation:

4x (-2x) - 3 (+3) = 2x (-2x) + 7 (+3)

4x - 2x = 7 + 3

2x = 10

Next, isolate the x by dividing 2 from both sides of the equation:

(2x)/2 = (10)/2

x = 10/2

x = 5

5 is your answer for x.

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3 years ago

An airplane is flying from New York city to Los Angeles.The distance it travels in Miles, D, is related to the time in seconds,

deff fn [24]

We have been given an equation $d=0.15t$ that represents the distance an airplane travels in Miles (d) is related to the time in seconds (t).

A. Upon substituting t=1 in our equation we will get,

$d=0.15\times 1$

$d=0.15$

We can see that our plane is travelling at rate of 0.15 miles per second.

$\text{Speed of plane }=0.15\frac{\text{miles}}{\text{second}}$

Therefore, plane is flying at the rate of 0.15 miles per second.

B. To find distance traveled by airplane in 30 seconds we will substitute t=30 in our given equation.

$d=0.15\times 30$

$d=4.5$

Therefore, plane will travel 4.5 miles in 30 seconds.

C. To find time it will take to travel 12.75 miles we will substitute d=12.75 in our given equation.

$d=0.15\times t$

$12.75=0.15\times t$

$t=\frac{12.75}{0.15}=85$

Therefore, plane will take 85 seconds to travel 12.75 miles.

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3 years ago