- Wed Aug 26, 2009 8:06 am
- Forum: Pre-Algebra
- Topic: two numbers. The difference is 24 and the sum is 60.
- Replies:
**5** - Views:
**6635**

Question about clarification of the process -- When Adding the two equations [ ( x + y = 60 ) + ( x - y = 24 ) ] and result was 2x = 84. The reason nothing was done with the "y" variable at that point is because first 2x = 84 had to be Simplified, Solved and then plugged in value of x to e...

- Thu Aug 13, 2009 11:30 pm
- Forum: Geometry
- Topic: measure distance of diag. of monitor to nearest 1/10 cm
- Replies:
**3** - Views:
**3319**

If I write this problem plugging in the values (304/16) ^2 = c^2; and a^2 = ( 192/16^2) + b^2 = n^2, then do the rules for equations apply -- meaning what value is applies to one side of an equation if that same value is applied to the other side, then the answer remains the same? If that rule is ap...

- Thu Aug 13, 2009 10:32 pm
- Forum: Geometry
- Topic: find the perimeter of a bird house 2 ft 7in. by 1ft 5 in.
- Replies:
**3** - Views:
**3268**

Feet: (2 + 1) + (2 + 1) = 3 + (2 + 1) = 3 + 3 = 6

Inches: (7 + 5) + (7 + 5) = 12 + (7 + 5) = 12 + 12 = 24

So, 24 inches converts to 2 feet

Add Feet: 6' + 2' = 8 feet

Inches: (7 + 5) + (7 + 5) = 12 + (7 + 5) = 12 + 12 = 24

So, 24 inches converts to 2 feet

Add Feet: 6' + 2' = 8 feet