1. You and your friend are shopping for painting supplies. Your friend wants five bottles of paint and one set of paint brushes. You want seven bottles of paint and two sets of paint brushes. Each bottle of paint costs $3.69. If you and your friend’s total cost is $51.69, what is the cost of one set of paint brushes?
my answer was FRIEND........... 5 x 3.69 = 18.45
YOU........... 7 x 3.69 = 25.83
TOTAL............... 18.45 + 25.83 = $44.28
51.69 - 44.28 = $7.41
paint brushes coast 2.47 each........... 7.41/ 3 = 2.47

IS THIS RIGHT

Question

1. You and your friend are shopping for painting supplies. Your friend wants five bottles of paint and one set of paint brushes. You want seven bottles of paint and two sets of paint brushes. Each bottle of paint costs $3.69. If you and your friend’s total cost is $51.69, what is the cost of one set of paint brushes? 
my answer was   FRIEND........... 5 x 3.69 = 18.45
YOU........... 7 x 3.69 = 25.83
TOTAL............... 18.45 + 25.83 = $44.28 
51.69 - 44.28 = $7.41
paint brushes coast 2.47 each........... 7.41/ 3 = 2.47

IS THIS RIGHT

zpupster · Answer

looks good!!

anonymous · Answer

ok thanks

anonymous · Answer

what about this one.......

anonymous · Answer

2. In physics the mass energy equivalence is that the mass of a body is measured by its energy content. This may be written algebraically as E=mc2, where E is energy, m is mass, and c is the speed of light in a vacuum. Transform the equation so that it will be read as a solution for mass, m. Show all the steps.

anonymous · Answer

im clueless

jdoe0001 · Answer

"Transform the equation so that it will be read as a solution for mass, m "   <--- solve for "m" pretty much

zpupster · Answer

you solve for --or isolate m 

E=mc2  divide both sides by c2
E/c2=m

anonymous · Answer

hey thanks zpupster.... r u sure

zpupster · Answer

http://answers.yahoo.com/question/index?qid=20090722090353AAmzdtT

anonymous · Answer

thanks