It depends how much matching placemats and napkins are used
Answer:
m = 6
Step-by-step explanation:
slope = m = rise/run = (Y2-Y1)/(X2-X1)
y = mx + b
where b is y-intercept
Looking at the graph we know that (0,-1) is y-intercept.
Easiest way is to count:
so from point (0,-1) to the next point which is (1,5)
y moves top 6 (so it's positive 6)
x moves right 1 (positive 1)
remember m = rise/run = change in y / change in x = 6/1
therefore slope is 6
For this one it's really simple. Just do 90-(-2). It may look confusing right now, but it's really easy. All you need to know is that a negative and a negative cancel out to form a positive. So it's actually 90+2. 92 is the difference.
Answer:
40 miles
Step-by-step explanation:
Let's set <em>x</em> to the number of miles driven, and <em>t</em> to the number of hours it took to drive.
We know that 40<em>t</em> is equal to <em>x</em>.
We also know that 40<em>t</em> is equal to 30(<em>t</em> + 1/3).
Solve for t:
40t = 30(t+1/3)
40t = 30t + 10
Subtract 30t from both sides:
10t = 10
Divide 10 from both sides:
t = 1
40t = 40 x 1 = 40 miles
