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3 votes
Solve 2 2/3 x 3 3/5 using an area model of 4 squares.​

User Joehanna
by
7.2k points

2 Answers

4 votes

Answer:

I don't know but good luck!!!!!

User Crimsonland
by
6.6k points
2 votes

Answer:

Explanation:

the answer

the true answer is A) 4x^2+52x+165=320; x = 2.5

proof:

since they want to limit its area to 320 in^2

x must be equal 2.5, because 4.(2.5)^2+52(2.5)+165= 25+130+165=320;

the main rule of the area of a triangle is

A= (base x height )/2

let be b the base and h the height

so h=20- 6b

so 50= b x( 20-6b) /2, implies 100/b = 20 - 6b

if b=x, we have 100= 20x -6x² this is equivalent to 6x² - 20x = -100

so the answer is

D) None of the choices are correct.

the largest dimensions that can be used for the fountain are

B) x^2+8x+16=800

C) x^2+16=800

proof

x^2+8x+16=x^2+8x+4², 4² is the area of the square fountain, and x^2+8x should be the remaining of the area, the total space that the fountain and sidewalk can use is 800, it is less than 800 ft^2.

Use the same method for. x^2+16=800

User STaefi
by
6.7k points
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