Exercise 29 Page 71

Your bedroom floor is a square that measures 14 feet by 14 feet. We can find the area A of the room using the length of the sides s and the formula for the area of a square. We have a maximum budget of $700 to buy a carpet for the room. If we let c represent the cost per square foot of the carpet, we can write an inequality to represent this situation. 196c≤ 700; ft^2 , dollars We can now isolate c to find the maximum allowed cost per square foot of the carpet by dividing both sides of the inequality by 196.

196c ≤ 700

DivIneq

.LHS /196.≤.RHS /196.

c ≤ 3.57142...

RoundDec

Round to 2 decimal place(s)

c≤ 3.57

The cost per square foot should be less than or equal to $3.57. c≤ 3.57; dollars/ft^2