I think the answer might be 21,445,000
A beam of light (travelling at the speed of light) would take 65 years to go and 65 years to come back from aldebaran, i.e. 130 years. You can send and receive a radio message (travelling at the speed of light, being electromagnetic radiation) taking so 130 years.
An equation is formed of two equal expressions. The solution of the system of equations is (0.75, 1.25).
<h3>What is an equation?</h3>
An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
The solution to the system of equation is,
y = 2 - x
y = 3x - 1
Substitute the value of y,
y = y
2 - x = 3x - 1
2 + 1 = 3x + x
3 = 4x
x = 3/4 = 0.75
Substitute the value of x in any one of the equation,
y = 2 - x
y = 2 - 0.75
y = 1.25
Hence, the solution of the system of equations is (0.75, 1.25).
Learn more about Equation:
brainly.com/question/2263981
#SPJ1
I think is 2713 but I am not sure about it.
Question: Michelle's family drove 272.48 miles . Michelle's calculate that they drove 26.2 miles per gallon of gas how many gallons of gas did the car use=> Unit rate = 26.2 miles per gallon,Now the total number of miles that they need to travel is 272.48 miles.Let's divide the total number of miles by the number of miles per gallon.=> 272.48 miles / 26.2 miles per gallon = 10.4 gallonThus, they need a total of 10.4 gallon in 272.48 miles.<span>
</span>