A rectangular prism has a length of 412 millimeters, a width of 412 millimeters, and a height of 6 millimeters. Sally has a stor
1 answer:
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To solve this, we are going to use the surface are of a sphere formula: 
where
is the surface area of the sphere
is the radius of the sphere
We know for our problem that
and 
, so lets replace those vales in our formula:
Now, we just need to solve our equation for:
or
Since the radius of a sphere cannot be a negative number,.
We can conclude that the radius of a sphere with surface area <span>2,122.64 </span>
is 13 in.
where
We know for our problem that
Now, we just need to solve our equation for
Since the radius of a sphere cannot be a negative number,
We can conclude that the radius of a sphere with surface area <span>2,122.64 </span>
Answer:
x=2, y=4
Step-by-step explanation:
When using elimination, the objective is to elimate one variable. In this case, we see that "y" can easily be eliminated by adding the two equations together since you will get 3y + (-3y) which will eliminate y because the value would become 0, letting us solve for x.
Then we get
, because the y's will eliminated, and 8x+7x is 15x, and 28+2 is 30.
Then divide by 15 on both sides and you get x=2
If x=2, then we can substitute that value into any of the previous given equations and find the value of y.
8×2 +3y = 28
16+3y=28
3y=12
y=4
So the answer to your system of equations would be x=2, and y=4
You can substitute the answers we found to see that they satisfy the equation.
Hope this helped.