20 times 3 equals 60
None. There is no perfect square that, when doubled, equals 60.
-60
Algebraically, you're asking to solve for x: 5x - 60 = x4x - 60 = 04x = 60x = 15Let's test just to be sure:15*5 = 7575 - 60 = 15It works, so 15 is the magic number.
240 inches
what is the magic square of 29
20 times 3 equals 60
None. There is no perfect square that, when doubled, equals 60.
-60
72
20' x 60' = 1,200 square feet.
Algebraically, you're asking to solve for x: 5x - 60 = x4x - 60 = 04x = 60x = 15Let's test just to be sure:15*5 = 7575 - 60 = 15It works, so 15 is the magic number.
240 inches
9x = 60x = 60/9 = 6 2/3 (or 6.67)
2 x 30 = 60
2100 square meters or 22,604.2 square feet.
4800, multiply 80 x 60. An easy way to solve this is to set up an equation. x/60 = 80. To solve for x, multiply both sides by 60. So then, its just 60 x 80 which is 4800