3 years ago

The area of a rectangle is 216 square inches. If the perimeter is 60 inches, find the length and width of the rectangle

Mathematics

1 answer:

mojhsa [17]3 years ago

3 0

A=Lw

P=2L+2w

216=Lw

W=216/L...substitute to Perimeter equation

60=2L+2(216/L)

60L=2L^2 + 432

2L^2-60L+432=0

2(L^2 - 30L + 216)=0

2(L-18)(L-12)=0

L=12, W=18 or L=18, W=12

You might be interested in

The average score of all pro golfers for a particular course has a mean of 70 and a standard deviation

Lisa [10]

Answer:

Step-by-step explanation:

8 0

1 year ago

Each ride at the fair costs $2.50. Alex will spend at least $15 for rides. Write an inequality to determine the least number of

goblinko [34]

0<r<6
the least number of ride he can go on is 0 which is none and the most is 6 because 15/2.50=6

4 0

3 years ago

How can a Line Plot help you find an average with data given in Fractions?

umka2103 [35]

Answer:

I did not understand its confusing

7 0

2 years ago

Read 2 more answers

30 POINTS!!! Louie is trying to find a rectangular canvas for his art project. Its diagonal must measure 23.3 inches and form a

Lisa [10]

Answer:

12 inches

Step-by-step explanation:

Given

$\theta = 31^{\circ}$

$diagonal = 23.3\ in$

Required

Determine the height of the canvas

The question is illustrated using the attached image.

Using the attachment as a point of reference, the height is calculated from

$sin \theta = \frac{opp}{hyp}$

This gives:

$sin 31^{\circ}= \frac{h}{23.3}$

Make h the subject

$h = 23.3 * sin(31^{\circ)$

$h = 23.3 * 0.5150\\$

$h = 11.9995$

$h = 12\ inches$

7 0

2 years ago

Read 2 more answers

What is the value of u if 6u =15

tatiyna

6u = 15
u = 15/6
u = 2.5

5 0

2 years ago

Read 2 more answers