Macy drew a rectangle that is 9 inches long and has an area of 45 square inches. what is the width of macy's rectangle?

Solutions 

given 

length = 9 inches

area = 45² inches

Calculations 

9 x n = 45²

45 ÷ 9 = 5 

The width is 5 

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)