Question

Please, help If x/0.5 + y/0.2 = 18, where x and y are positive integers, then what is the value of x ?

Answer 1

2) Let setM = {x, 2x, 4x} for any number x. If the average (arithmetic mean) of the numbers in set M is 14, what is the value of x ?

Answer 2

for the first one, the answer is 4. but I don't know how to get

Answer 3

i mean write 0.5 as 1/2 and the other as 1/5.

Answer 4

2x+5y=18

Answer 5

ok, got it, how about 2)

Answer 6

nvm, I got it.thank for being here, friends

Answer 7

welcome :P