X represents number of weeks.
140 + 10x = y
95 + 19x = y
You will have the same balance after 5 weeks.
112 is 80% of 140.
80% can be written as 0.80 or 0.8.
how i got 140 is by finding the x value of this equation: 0.8x=112
to find the x, i divided 0.8 from both sides,
0.8 divided by 0.8 cancel out.
112 divided by 0.8 is 140.
therefore, 112 is 80% of 140
15.8 percent is your answer