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2 years ago

The sum of twice a number and 6 is the same as 3 subtracted from the number itself

Mathematics

2 answers:

rusak2 [61]2 years ago

8 0

3+3=6
6-3=3
the number's 3

I am Lyosha [343]2 years ago

3 0

Answer: The required number is -9.

Step-by-step explanation: Given that the sum of twice a number and 6 is the same as 3 subtracted from the number itself.

We are to find the number.

Let x represents the given number.

Then, according to the given information, we have

$2x+6=x-3\\\\\Rightarrow 2x-x=-3-6\\\\\Rightarrow x=-9.$

Thus, the required number is -9.

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Paha777 [63]

Answer:

tan−1(StartFraction 6.9 Over 9.8 EndFraction)

Step-by-step explanation:

tan−1(StartFraction 6.9 Over 9.8 EndFraction)

tan = opp/adj = 9.8/6.9

tan -1 = 1 / tan = 1 / (9.8 /6.9) = 6.9 /9.8

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1 year ago

Read 2 more answers

If a baseball player hits a baseball from 4 feet off the ground with an initial velocity of 64 feet per second, how long will it

topjm [15]

Answer:

0.64 seconds

Step-by-step explanation:

In the equation provided:

h = −16t2 + 4t + 4

h is the height of the ball and t is time. Since we want to find the time when the ball touches the floor, then height is 0. This leaves us with the equation

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This is a quadratic equation can be solved with the following formula:

$x= \frac{-b+-\sqrt{b^{2}-4ac } }{2a}$

where a=-16

b=4

c=4

Solving for t we will find two different results:

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Since time can't be negative, we discard t2 and choose t1.

Since it is required to answer in the nearest hundredth, we round the result to t=0.64 seconds.

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1 year ago

Anthony, Brian and Chris are hired for a job. If Anthony and Brian are working together they will finish the job in minutes. If

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Answer:

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