(560+48x)/x. After owning the washing machine for x years, with operating cost of $48 each year, the total amount of operating cost is 48x. We should also add the one-time cost of buying the washing machine, which is $560. The total cost is 560+48x. Since x years have past, the average annual cost is (560+48x)/x, or 48+560/x dollars.
I think what is already filled in is correct
Answer:
14√2
Step-by-step explanation:
A square with a diagonal automatically makes a 45 45 90 triangle (angles) meaning that the two legs are x and the hypotenuse (diagonal) is x√2
If 14 = x then the diagonal is 14√2
You could also solve with the pythagorean theorem
a^2 + b^2 = c^2 so in this case
14^2 + 14^2 = c^2
196 + 196 = c^2
392 = c^2
√392 = √c^2 the 392 is divisable by 196 so you can divide that out as 14
14√2 = c
3/4x - 20 = 7
3x/4 - 20 = 7 Common denominator is 4.
4 (3x/4 - 20) = 4 x 7 Distribute the 4 though the parenthesis
4 x 3x/4 - 4 x 30 = 4 x 7
3x - 4 x 20 = 4 x 7
3x - 80 = 4 x 7
3x - 80 = 28 Add 80
3x = 28 + 80
3x = 108 Divide by 3
x = 108/3
x = 36
Answer:
Step-by-step explanation:
To have a common denominator of 48, we need to solve for numerator and denominator!
If you multiply the denominator by 6 just to get to 48, you must multiply it to the numerator as well.
If you multiply the denominator by 16 just to get to 48, you must multiply it to the numerator as well.
Then we have those results in the line: 
Then we added those fractions to get to 44/48 and simplify it by 4
