Question

1. killem dead pest control needs to set out 5 roach motels per square yard. in a rectangular studio apartment thats 7 yards by 4 yards wide, about how many roach motels will need to be set out?

20
140
280
35

Explanation:

Step1: Calculate the area of the rectangular studio

The area formula for a rectangle is \(A = l\times w\). Here, \(l = 7\) yards and \(w = 4\) yards. So, \(A=7\times4 = 28\) square - yards.

Step2: Calculate the number of roach motels

Since there are 5 roach motels per square - yard, the total number of roach motels \(N=5\times A\). Substitute \(A = 28\) into the formula: \(N = 5\times28=(5\times20)+(5\times8)=100 + 40=140\).

Answer:

140