Homework Help: Math

Posted by Kyla on Sunday, January 13, 2013 at 9:43pm.

1. The length of a rectangle is 5 mm longer than its width. Its perimeter is more than 30 mm. Let w equal the width of the rectangle.

a. Write an expression for the length in terms of the width.
b. Use expressions for the length and width to write an inequality for the perimeter, on the basis of the given information.
c. Solve the inequality, clearly indicating the width of the rectangle.

Math - Reiny, Sunday, January 13, 2013 at 10:00pm
width --- x
length --- x+5

2x + 2(x+5) ≥ 30
4x + 10 ≥ 30
4x > 20
x > 5

Answer this Question

Related Questions

basic geometry - A rectangle has width the same asa a side of a square whose ...
basic geometric - 10. a rectangle has width the same as a side of a square whose...
math - .the perimeter of a rectangle is 30 m more than three times its width. if...
Algebra 1 - Okay one last one that I've spent all night truing to figue out...
math - the length of a rectangle is 5 ft more than twice the width. a)if x ...
algebra - The length of a rectangle is 5 inches longer than its width. Its ...
College Algebra - Suppose that the length of a rectangle is 3 inches longer than...
math - The length of a rectangle is 5 in. more than twice its width.? How do I ...
math - Suppose that the width of a rectangle is 5 inches shorter than the length...
maths - the length of a rectangle is 3 less than 5 times its width. Write a ...

For Further Reading

First Name:
School Subject:
Answer: