From the information given, you can say that the total amount Tom's Landscaping charges for a job would be equal to the flat fee plus the result of multiplying the charge per hour for the number of hours and this would be:
c=y+25x (1), where:
c is the total cost
y is the flat fee
x is the number of hours
Now, as you know that Tom charged a customer $90 for a job that required 3 hours, you can replace c with 90 and x with 3 and solve for y to find the flat fee:
90=y+25(3)
90=y+75
90-75=y
y=15
Finally, as you know that the flat fee is 15, you can replace this value in (1) to establish the equation that would calculate the total amount that Tom's Landscaping charges for a job that requires x hours of work:
This can be calculated using the formula: P = L((r/n)*(1 + r/n)^(n*t))/((1 + r/n)^(n*t) - 1) Where: L = 4759 r = 0.209 n = 12 t = 3 So plugging in our data:P = 4759((0.209/12)*(1 + 0.209/12)^(12*3))/((1 + 0.209/12)^(12*3) - 1) Which will give us the amount of: $179.05 is the monthly repayments. Other info: Total interest:$1,686.80 Total cost:$6,445.80
First, take about the and You can cancel out the two 3's on the bottom using two of the threes from the numerator Simplify the fraction 3 x 3 Multiply 9
