(x-5,y+8)
the x basically decreased- to the left
and y increased- upwards
Let Mike sold M cars and Bill sold B cars.
Now both sold 640 cars in total, means M + B = 640,
also Mike sold 3 times as many as Bill, means M = 3*B. So our equations became,
M + B = 640, & M = 3*B, put value of M in terms of B.
3*B + B = 640, 4*B = 640,
B = 640/4, B = 160, as M = 3*B, M = 3*160 = 480.
So Mike sold 480 cars & Bill sold 160 cars.
<u>Question 11</u>
1) 
, 
(given)
2) 
(reflexive property)
3) 
(ASA)
4) 
(CPCTC)
<u>Question 12</u>
1) Isosceles 
with 
, 
(given)
2) 
(angles opposite congruent sides in a triangle are congruent)
3) 
and 
are supplementary. 
and 
are supplementary (angles that form a linear pair are supplementary)
4) 
(supplements of congruent angles are congruent)
5) 
(SAS)
6) 
(CPCTC)
7) 
is an isosceles triangle (a triangle with two congruent sides is isosceles)
<em>Note: I changed the names of the segments in Question 11 because of the word filter.</em>
