Question

Paul has $145 in his savings account. He earns $36 a week mowing lawns. If Paul saves all of his earnings, after how many weeks will he have no more than $450 saved?

Answer 1

Answer:

Paul will have no more than $ 450 in next 8 weeks.

Step-by-step explanation:

From the information given on statement, we know that Paul saves all of his earnings weekly. Then, the money save is equal to the sum of initial amount ($C_{o}$), measured in monetary units, and week earning ($R$), measured in monetary units, multiplied by a number of weeks ($n$), dimensionless:

$C =C_{o} + n\cdot R$ (1)

Now we clear the number of weeks within the formula:

$n = \frac{C-C_{o}}{R}$

If we know that $C_{o} = \ \,145$, $C = \ \,450$ and $R = \ \,36$, then the number of weeks is:

$n = \frac{\ \,450-\ \,145}{\ \,36}$

$n = 8.472$

Paul will have no more than $ 450 in next 8 weeks.

Answer 2

Answer:

Paul will have no more than $ 450 in next 8 weeks.

Step-by-step explanation: