You can do rise over run or you can use the equation m= y2 - y1/ x2 - x1.
3(2x+1)=2(x+1)+1
6x+3=2x+2+1
6x+3=2x+3
minus 2x
4x+3=3
minus 3
4x=0
divide by 4
x=0
her work is correct
her conclusion is wrong; there is one solution which is x=0
Agriculture , but this isn't math <span />
<span>The answer should be 0.00008726567
Hope this helps! </span>
t = 5.3 years
(about 5 years 4 months)
Equation:
t = (1/r)(A/P - 1)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 7.2%/100 = 0.072 per year,
then, solving our equation
t = (1/0.072)((4835.6/3500) - 1) = 5.3
t = 5.3 years