Describe how you can use compatible numbers to estimate 17x27

600

Step-by-step explanation:

all you got to do is 17 goes to what? 20 because its closer. and 27 is closer to 30.

I hope that helps you.

48

Step-by-step explanation:

Perimeter of square = 4 x 6x

Perimeter = 24x

P = 2l + 2w

P = 2(2x + 4) + 2(16)

P = 4x + 8 + 32

P = 4x + 40

Perimeter of square = perimeter of rectangle

24x = 4x + 40

-4x      -4x

20x = 40

20      20

x = 2

Perimeter of square = 24x

Perimeter of square = 24(2)

Perimeter of square = 48

Perimeter of rectangle = 4x + 40

Perimeter of rectangle = 4(2) + 40

Perimeter of rectangle = 8 + 40

Perimeter of rectangle = 48