Name: sameer
Who is asking: Parent
Question: Hi Sameer, I want to start by simplifying the right side of the second and third exprressions. ^{120}/_{2} - 5 = 60 - 5 = 55
^{(130 - 10)}/_{6} = ^{120}/_{6} = 20
Now look at the first exprerssion, a + b + c = 180. Since c = b + 20 we can replace c in the first expression by b - 20 to get But the second equation we know now says b = a + 55 and hence Now you can use the simplified second equation to find b and then the simplifies third equation to find c. You should then check your answer by substituting the values of a, b and c you found into the original three equations to make sure they are valid. PennyTo return to the previous page use your browser's back button. |