Posted by mysterychicken on Saturday, May 2, 2009 at 3:02pm.
I'm sorry I had to repost, but this is urgent and i need it done by today!!
Can someone please show me how to do these problems? I've been trying but I'm having a hard time...
1.Simplify the expressions on each side of the equation to obtain an equivalent equation:
5x + 12 + 4x 16= 100/2
2.Angles UVW and angles XYZ are complementary angles. m of angle UVW is 18 degress less than m of angle XYZ. What is m of angle UVW?
3.After a 24% increase, the price of a tennis racquet was $37.82. What was it's original price?
Thanks so much!!
MC

PreAlgebra [repost]  Ms. Sue, Saturday, May 2, 2009 at 4:29pm
1.
5x + 12 + 4x 16= 100/2
9x  4 = 50
9x = 54
x = 6
3.
1.24x = 37.82
x = ?

PreAlgebra [repost]  Reiny, Saturday, May 2, 2009 at 8:10pm
2.
let angle XYZ = x
then angle UVW = x18
don't complemenatry angles add up to 90 ?
so x + x18 = 90
solve for x, sub into x18
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