Suppose that this person drives at r mph going to the mountains, and gets there in 12 hours. Returning, this person drives at (r+20) mph and gets home in 8 hours. We don't know the distance yet, but can solve for the initial speed, r, by setting
d = 12r = (r+20)(8). Solving for r, r=40 mph (going) and (40+20)mph = 60 mph (returning. Since d=12 r, d = (12 hrs)(40 mph) = 480 miles (answer).
The slope of the line is the velocity, or rate of change, of y with respect to x. In other terms, the slope tells you how much y will change for every change in x by one unit. For example if the slope, which is velocity, is 2. y will increase by two units every time x increases by one unit. Your graph is not pictured nor explained, so I cannot give you the specific context beyond the principle that the slope of a line is a constant velocity or rate of change.
Answer: 16/3 or 5.333333
Step-by-step explanation:
1/3 is 0.3333333 so 0.3333333 + 5 is 5.333333
Answer:
378 people
Step-by-step explanation:
60% of 630 = 0.6 × 630 = 378
The slope-intercept form of a line is the following:
In this form, 
is the shape and 
is the y-intercept. Your line written in this form is
which implies that the slope is 5 and the y-intercept is -2.
