Arectangle is 4 times as long as it is wide. the perimeter is 150cm. find the dimensions of the rectangle. round to the nearest tenth if necessary

Length 60 cm

Width 15 cm

Step-by-step explanation:

Let

x ----> the length of rectangle

y----> the width of rectangle

we know that

The perimeter of rectangle is equal to

we have

so

simplify

----> equation A

----> equation B

substitute equation B in equation A

solve for y

Find the value of x

----->

therefore

The dimensions of the rectangle are

Length 60 cm

Width 15 cm

step-by-step explanation:

once you graph it hit 2nd (the blue button) and graph

that takes you to a table of coordinates

on the left is x coordinates and on the right is y coordinates and an empty box

(you may have to scroll up/down in order to get ( x, 0)

step-by-step explanation: