beccarobinson204 beccarobinson204

06-09-2021
Mathematics

contestada

A rectangle is 6 more than 4 times as long as it is wide. If the perimeter is 42, how long is
the rectangle?

Respuesta :

rmbhimpuria rmbhimpuria

06-09-2021

Solution

2(4x + 6) = 8x + 12

8x + 12 + 2x = 42

10x + 12 = 42

10x = 30

x = 3

Therefore the width is 3cm.

3cm * 2 = 6

42 - 6 = 36

36 / 2 = 18

Therefore the length is 18cm

Answer Link

Otras preguntas

which expressionis equal to9(9MPLUS3t)

During a local high school football game, the height h feet of a football after t seconds can be represented by the function h(t) = −16t2+ 58t + 2. Find h(2.5)

One major result of Karl Marx's economic theories was: A. the growth of demand for consumer products. B. the decline in support for Keynesian economies C. the

How does your "emotional brain" affect appetite?

A fast Celtic dance with a beat division of 2 is the a. Reel b. Jig c. Hora d. Ayre

what is Foreign exchange risk ??

PLEASE HELP!!!!!!!! Calculate the pH for the following weak acid. A solution of HCOOH has 0.19M HCOOH at equilibrium. The Ka for HCOOH is 1.8×10−4 . What is the

If xm/x5=x7 and (x)=x¹2, then the value of m-r= A. 3 B. 4 C. 8 D. 12 If xm / x5 = x7 and ( x ) = x¹2 , then the value of m - r = A. 3 B. 4 C. 8 D. 12

Find the value of 5y-3 given that -3y-8=7. Simplify your answer as much as possible. Find the value of 5y - 3 given that -3y - 8 = 7 . Simplify your answer as m

Assume the population of human body temperatures has a mean of 98.6 degrees Fahrenheit as is commonly believed. Assume the standard deviation is .62 degrees Fah