Answer:
Step-by-step explanation:
What we have is a general equation that says this in words:
Laura's hours + Doug's hours = 250 total hours
Since we don't know either person's number of hours, AND since we can only have 1 unknown in a single equation, we need to write Laura's hours in terms of Doug's, or Doug's hours in terms of Laura's. We are told that Doug spent Laura's hours plus another 40 in the lab, so let's call Laura's hours "x". That makes Doug's hours "x + 40". Now we can write our general equation in terms of x:
x + x + 40 = 250 and
2x = 210 so
x = 105
Since Laura is x, she worked 105 hours in the lab and Doug worked 40 hours beyond what Laura worked. Doug worked 145. As long as those 2 numbers add up to 250, we did the job correctly. 105 + 145 = 250? I believe it does!!
Total Area = r² π + 2 r h π = 6² π + 2 * 6 * 14 π = 204 π in²
Green Area = 2 * 6 * 8 π = 96 π in²
204 π ---------------100 %
96 π ----------------- x %
---------------------------------
x = ( 96 * 100 ) / 204 = 47.0588 ≈ 47.1
Answer:
<span>About 47.1 % of the ottoman is green ( not including the bottom ).
hope this helped (:</span>
Answer:
y = -2x + -3
Step-by-step explanation:
The line has a slope of -2 because when counting from point to point, its 2 down and one over; 2/1 or 2 (negative because the line is going down)
The intercept in -3 because thats the first place the line touches the y axis.
Answer:
These are all points on a graph. I'm not sure what you're asking.