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

Subtract 2m – 7q + 5 from 4p + 2q and add your result to 7m² - 3m + 9q – 1

please help thank you

Can anyone help me with 9 and 10 please

help please thank you

Psychologists once believed that any stimulus (whether a taste, sight, or sound) could serve equally well as a conditioned stimulus. this belief was challenged

A multiple choice test consists of 100 questions. A correct answer is worth 2 marks, while an incorrect answer is worth -1 marks. If a student receives a score

Chemical equilibrium is described as being dynamic because: The mass of the reactants changes to equal the mass of the products. The concentration of the

Write the sum using summation notation, assuming the suggested pattern continues. -9 - 3 + 3 + 9 + ... + 81 summation of the quantity negative nine plus six n

What statement holds true for the amount of matter in a successful food web?

whats the solution for 7x−y=7 x+2y=6