Answer:
288 miles
Explanation:
Time taken with traffic = 9 hours
Time taken without traffic = 4 hours
Speed with traffic = x mph
Speed without traffic = x+40 mph
Distance = Speed × time
Distance travelled in 9 hours
9x
Distance travelled in 4 hours
4(x+40)
Since both the distances are same
Speed with traffic = 32 mph
Distance travelled = 9×32 = 288 miles
∴ Shen lives 288 miles from the mountains
Answer:
Emily's opportunity cost of producing 1 milkshake is 1 ice cream sundae.
Ben's opportunity cost of producing 1 milkshake is 0.5 ice cream sundae.
Explanation:
Both Emily and Ben own an ice cream parlor.
In an hour Emily can produce 40 milkshakes or 40 ice cream sundaes.
Emily's opportunity cost of producing a milkshake is
=
=
= 1 ice cream sundae
In an hour Ben can produce 20 milkshakes or 10 ice cream sundaes.
Ben's opportunity cost of producing a milkshake is
=
=
= 0.5 ice cream sundae
We see that Ben has a lower opportunity cost of producing milkshake, so we can say that he has a comparative advantage in producing milkshake.