kpopsaranghae kpopsaranghae

02-11-2018
Mathematics

contestada

The length and width of a rectangle are 7 cm and (x-8) cm respectively. Find the value of x if the area with of the rectangle is 42 cm squared.

Respuesta :

popholmes16 popholmes16

02-11-2018

to find the area of a rectangle is LxW=A

plug in the given numbers you have

L = 7

W = x-8

A = 42

7 * x-8 = 42

7x-56= 42

solve for X

Answer Link

Otras preguntas

Choose the word that describes a person who is smart but in a sneaky way. A. Sharp. B. Cunning. C. Intelligent. D. Skillful.

The cause of the sun rising and setting in the sky is the earths rotation . What is the affect

What's the difference between Romanesque and Gothic style buildings?

Which of the following 19th-century figures is known for opening Japan to U.S. trade? A)Franklin D. Roosevelt B)Francis Xavier C)Matthew Perry D)Sato Eisaku

What did Enlightenment thinkers believe predated society and was superior to the laws of the church or the state?

what act did the united states government pass in order to be able to move Native American of their lands into the Indian's Territory? A) Native American Act B)

Which fraction is equivalent to 2/7

How to make a mixed fraction

two trains leave stations 408 miles apart at the same time and travel toward eachother. one train travels at 95 miles per hour while the other travels at 75 mil

QUICK! Lucy is trying to find a rational number between 3 \8 and 6 \7 . What would help her to find this number? A)Divide 3\ 8 by 6\ 7 . B) Convert 3 \8