This is a system of equations.
Let L represent Lucia, and B represent Ben
The first equation is:
L + B = 150
The second one says that for every dollar ben saved, Lucia saved twice as much. So:
L = 2B
Now, solve the system
2B + B = 150
3B = 150
B = 50
L = 2(50)
L = 100
This means that Ben saved $50, and Lucia saved $100
Hey. Good afternoon.
120$ --- 80%
x --- 100%
80x = 12000
x = 12000/80
x = 150$
Sorry my bad english, i'm Brazilian.
To round 12 to the closest hundredth think about the thousandths' estimation of 12, which is 0 and under 5. In this manner, the hundredths' estimation of 12 stays 0.
