Question

@angle

Answer 1

all angles in a triangle add up to 180. So the 3 angles you add them up, sub in 5 for x and see if the total equals 180 degrees

Answer 2

and if the sum is equivalent to anything other tahn 180 then her solution is not correct

Answer 3

^ darkknight's strategy will get you the answer to part b

Answer 4

oh right, and part a plug in 5 for x and find the angles, for ex if 11x is one angle, plug in 5 for x and that angle equals 11(5) = ???

Answer 5

Ok so my answer was:
a. y=55 w=75 z=45
b. 55+75+45=175 175 doesn't equal 180 Therefor she is incorrect.

Answer 6

\(\color{#0cbb34}{\text{Originally Posted by}}\) @boredfr
Ok so my answer was:
a. y=55 w=75 z=45
b. 55+75+45=175 175 doesn't equal 180 Therefor she is incorrect.
\(\color{#0cbb34}{\text{End of Quote}}\)
Am I correct?

Answer 7

perfect :)

Answer 8

yes you are correct a super easy and foolproof method of doing part b is 11(5) ends in a 5, 15(5) ends in a 5. 8 times 5 + 5 ends in a 5. therefore it is impossible for the numbers in the ones place (3 fives) to end in a zero (in the ones place).