Answer:
A hotel owner .
Step-by-step explanation:
Let one number be x.
Let the other number be y.
x + y = 49
x - y = 7
Subtracting both equations,
2y = 49 - 7 = 42
--- y = 21
--- x = 21 + 7 = 28
Hence the two numbers are 21 and 28.
Answer:
1 U.S. dollar = 6.84 Chinese Yuan
Explanation:
Take the number of Yuans and divide it by the number of U.S dollars.
then round to 6.84