Martin is building a sandcastle at the
2 answers:
You might be interested in
now, it takes 1 second for light to travel 300,000,000 meters.
if we know it takes light 1 second to go 300 million meters, then in 365 days or a year, or 60*60*24*365 seconds, it will then travels
300,000,000 * 60 * 60 * 24 * 365 meters in 1 year,
how about in 110,000 years, how many meters has it travelled?
300,000,000 * 60 * 60 * 24 * 365 * 110,000 that many meters.
we know she travels the Milky Way in 110,000 years or 60 * 60 * 24 * 365 * 110,000 seconds
and we know that 110,000 years is 3468960000000 seconds, so
if it travels 300000000 meters in only 1 second, in 3468960000000 seconds, it will travel then (300000000) * (3468960000000) meters
or 1040688000000000000000 meters.
Answer: 1
Step-by-step explanation:
First you need to multiply 3 x 3 (9), because that's all 3 squared means.
Now the equation should be 9x-6x+3=0
Next we need to combine like terms. Do 9x - 6x which should give you 3x
Now your equations should be 3x+3=0
Now for the somewhat harder part...
Under the three (the one without the x) write -3 and under the zero write the same thing. the +3-3 cancels out so just put a line or something across it.
0-3= -3
so now you should have...
3x=-3 ignore the 3x, at this point it's useless in getting the answer because it would cancel out.
-3 divided by -3 is 1 because a negative (-) divided by a negative (-) equals a positive (+).
The answer should be x = 1
