spamneggs2010
spamneggs2010 spamneggs2010
  • 01-12-2019
  • Mathematics
contestada

The area of an interactive whiteboard is 3000 square inches, and its perimeter is 220 inches. find the dimensions of the whiteboard.

Respuesta :

spark10 spark10
  • 01-12-2019

Answer:

50, 60, 50, and 60

Step-by-step explanation:

xy = 3000

2x + 2y = 220

Rewrite the second equation

y = -x + 110

Substitute this into the first equation.

x(-x + 110) = 3000

-x^2 + 110x - 3000

Divide by -1

x^2 - 110x + 3000

(x - 60) (x - 50)

x = 60, 50

When x = 60, y = 50 and vice versa, so the sides are 50, 60, 50, and 60.

Answer Link
Аноним Аноним
  • 12-05-2020

Answer:

Step-by-step explanation:

Do you still need help

Answer Link

Otras preguntas

What is bacteria bigwig
In which city was Harlem located? Detroit Chicago New York Philadelphia
plateau periods are times in life when
Graph the following numbers on a number line {-4, -2, -3} Show work please
Which ionic compound is used as a building material? 1.salt 2.limestone 3.magnesium oxide 4.iron oxide
A technique that can be used to compare the DNA of two or more plants is?
Which of the following should be filed immediately after Bogart? 1. Binton 2. Berenger 3. Bomgardner 4. Burton
what is the total cost of a sweatshirt if the regular price is $42 and the sales tax is 5.5?
samira ran around a park loop that was 1/3 mile long. She ran around the loop 9 times. Samira says she ran 9/3 miles. Her brother says she ran 3 miles. Who
which type of mutation is responsible for sickle cell anemia .A inversion B substitution C insertion D deletion