For this, the number we are looking for is x.
use this formula... 17 - 3 = 2x
therefore, 14 is your doubled number.
14 divided by two is 7.
your mystery number is 7
Answer: 58, 122
Step-by-step explanation:

Answer:
Dave needs to mow 14 lawns to have enough money to buy a bike.
Step-by-step explanation:
180-40=140, 140/10=14. Dave needs to mow 14 lawns to have enough to buy a bike.
So if you do 3/5 it ends up equaling .6 you can convert that into a percent and it equals 60%
There is no way to factor this so i would assume the answer is no solution.