Answer:
52 miles per hour
Step-by-step explanation:
Given:
Distance driven = 364 miles
Total time taken = 7 hours
Required:
Average speed of Chad
SOLUTION:
Average speed is the number of miles covered per hour.
Thus:
Average speed = distance covered / time taken to cover the distance
Average speed = .
Chad's average speed is 52 miles per hour.
All we need to do is to find out how much is 3/8 of 3424. We can do it in at least two ways:
1. Divide 3424 by 8 and then multiply the result by 3
2. Just multiply 3424 by 3/8
So:
3424 / 8 = 428
428 * 3 = 1284
or:
3424 * 3/8 =
= 428 * 3/1 =
= 428 * 3 =
= 1284
Answer: Manfred hiked 1284 miles.
Step-by-step explanation:
the total cost is, of course, first the cost to buy the copier, and then the running costs per copy made.
it is really that easy.
the equations just put this into mathematical form :
A
y = 0.02×x + 800
B
y = 0.06×x + 600
please notice, we put $600 or $800 in as constant term, because these costs are the starting costs that we have, even if we never make a single copy (x = 0).
and then the total cost goes up with every copy we make.
I cannot draw here.
so, to find the number of copies where both copier systems would cost the same, means we have to say both equating deliver the same result :
0.02×x + 800 = 0.06×x + 600
200 = 0.04×x
x = 200 / 0.04 = 5000
when making 5000 copies both costs are the same.