The perimeter of an equilateral triangle is 17 cm less than the perimeter of a rectangle.

The length of one side of the triangle is 5 cm.

a Construct an equation for the perimeter of the rectangle.



b What is the perimeter of the rectangle?



c The rectangle is 3 times as long as it is wide.

Construct and solve an equation to find the longest side length

of the rectangle.

Agroup of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?