15-01-2020
Mathematics

contestada

The length of a rectangle is one inch less than three times it's width. If the perimeter of the rectangle is 54 inches, find the length.

Respuesta :

15-01-2020

Answer:

l = 20

Step-by-step explanation:

set up a system of equations

l = 3w -1

54 = 2l + 2w

substitute

54 = 2(3w-1) + 2w

56 = 8w

w = 7

l = 3 *7 -1

l = 20

Answer Link

Otras preguntas

A(n) _____ includes the original product plus the extra things needed to increase the value from consumption. a. exemplar product b. unsought product c. augment

Give at least two reasons why the author may have used phrases “tight house” when referring to the “comfortable people”in line 49 of the grapes of wrath.

Currency that derives its value from the amount printed on it rather than from the value of the paper or metal from which it is made is referred to as ______ mo

Four of the following words are alike in some way. Which is the odd word out? A: misconception B: predicament C: quandary D: dilemma E: pickle Please explain :)

Triangles G H L and K H J are connected at point H. Angles Angles L G H and H K J are congruent. Sides G H and H K are congruent. Which congruency theorem can b

Paris, France. How should he best organize the ideas in his presentation?

I struggle with math and am having difficulty solving this problem. Please only solve if you definitively know the answer. Thank you!

A car salesman earn. 2% commission on all of his sales if he needs to make 3,000 a month for his living expenses what total dollar amount must he sell to make h

When rear traction is lost what is the best way to restore traction to the rear?.

By the end of middle childhood, the fine motor abilities have generally __________, whereas gross motor development __________.