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

Which of the following best describes renewable energy? A. Natural mineral source of energy B. Sources that can be mined or drilled, and will last for a finite

Cuanto vale la y en matemáticas

you spent $25 at the store. you bought a book for $8.50 and pencils for $.25 each. how many pencils did you buy?

-15p+32p please awnser its rsm hw

If x +2 is a factor of p(x) =x²-kx +7, thrn find the value of k.Also,find the other factor of the polynomial ?

how many molecules of oxygen is in water

If x +2 is a factor of p(x) =x²-kx +7, thrn find the value of k.Also,find the other factor of the polynomial ?

you spent $25 at the store. you bought a book for $8.50 and pencils for $.25 each. how many pencils did you buy?

PLEASE HELP!! Whats the lifestyle or entertainment in The Odyssey? (I need it for a newspaper project so please answer w a good explanation)

g(x) = 4x+6 h(x)=x-5 Write the expressions for (g-h) (x) and (g-h) (x) and evaluate (g- h) (3). (g-h)(x) = (g-h)(x) = 0 (g+h)(3) =