Ms. Davis hires Kyle to mow the grass, edge the lawn, clean up the leaves, and plant 2 flower beds. Kyle spends 3.2 hours completing the work. What is Kyle's average hourly earnings for the job?

1 answer

To calculate Kyle's average hourly earnings, we need to divide the total amount earned for the job by the number of hours worked. Let's calculate each part of the job separately before adding them up:

1. Mowing the grass: let's assume this takes x hours. We don't know the hourly rate, so we'll use the variable r for the hourly rate of mowing the grass. This means mowing the grass earns Kyle x * r dollars.
2. Edging the lawn: let's assume this takes y hours. We don't know the hourly rate, so we'll use the variable s for the hourly rate of edging the lawn. This means edging the lawn earns Kyle y * s dollars.
3. Cleaning up the leaves: let's assume this takes z hours. We don't know the hourly rate, so we'll use the variable t for the hourly rate of cleaning up the leaves. This means cleaning up the leaves earns Kyle z * t dollars.
4. Planting the flower beds: this is a one-time task, so let's assume this takes w hours. We don't know the hourly rate, so we'll use the variable u for the hourly rate of planting the flower beds. This means planting the flower beds earns Kyle w * u dollars.

Our equations are:
1. x * r = earnings for mowing the grass
2. y * s = earnings for edging the lawn
3. z * t = earnings for cleaning up the leaves
4. w * u = earnings for planting the flower beds

From the problem, we're also told that the total time Kyle spends on the job is 3.2 hours, so we have:
x + y + z + w = 3.2

To find Kyle's average hourly earnings, we'll sum up the earnings from each part of the job:
(x * r + y * s + z * t + w * u) / 3.2 = average hourly earnings

Unfortunately, we don't have enough information to solve this problem. We would need either the values for x, r, y, s, z, t, w, or u to calculate Kyle's average hourly earnings.