Trong mô hình hai quốc gia (1, 2) và hai sản phẩm (X, Y): Quốc gia 1 có năng suất 6X và 4Y (giờ/người); Quốc gia 2 có năng suất 1X và 2Y (giờ/người); Tỷ lệ trao đổi mậu dịch là 6X = 6Y a. So sánh lợi ích tăng thêm của 2 nước khi thương mại với nhau. (1 đ) b. Xác định khung trao đổi mậu dịch giữa hai quốc gia. (1 đ)

50*10 is greater

step-by-step explanation:

if you add the zero from 10 to 50, it will give you a bigger number.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

hey there : ) your answer would be a.

step-by-step explanation:

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."