Answer:
x=8
Step-by-step explanation:
(6x+4)+(4x+6)=90
10x+10=90
-10 -10
<u>10x</u>=<u>80</u>
10 10
x=8
Answer:

Step-by-step explanation:
We are given the following in the question:
Flat fee = 6 dollars
Charges per hour = 10 dollars per hour
Let Steve work for h hours.
Then, we can write the total charge in the following manner:
Total charge =

Putting values, we get,

is the required equation for total charges if Steve worked for h hours.
To calculate the sine of an angle, simply divide the length of the opposite side, 479.16, by the length of the hypotenuse, 610. To get the cosine, divide the length of the adjacent side, 377.5, by the length of the hypotenuse, 610.