X=one type that cost 9
y=one type that cost 8
total books=type1+type2
total books=13
x+y=13
the total cost=cost of each added together
cost of each=number of books times cost per book
total cost=108
9x+8y=108
we have
x+y=13
9x+8y=108
solve for x and y
multiply first equation by -8 and add to first equation
-8x-8y=-104
<u>9x+8y=108 +</u>
x+0y=4
x=4
subsitute
x+y=13
4+y=13
minus 4
y=9
4 of the $9
9 of the $8
thats how to solve
Answer:
JK ≅ MN
Step-by-step explanation:
Given:
Side : JL ≅ MR
Angle: ∠J ≅ ∠M
Side Angle Side - Angle is inbetween tow sides. So JK ≅ MN
If you look at the question directly, I believe the answer would be $650.
Hope this helps!