Answer:
Step-by-step explanation:
LCM of 7/12 and 5/6
12: 12, 24
6: 6, 12
LCM: 12
Answer:
x=10
the triangle is equilateral
Step-by-step explanation:
3x+30=5x+10=2x+20
x+30=3x+10=20
x=3x-20=-20
-2x=-20=-20
x=10=10
x=10
Answer:
Let's denote:
x: number of ticket 28$
y: number of ticket 40$
Then, we have:
x + y =5000
28x + 40y = 153200
=> 28(5000 - y) + 40y = 153200
=> 12y = 153200 - 140000
=> 12y =13200
=> y = 1100 (ticket 40$)
=> x = 5000 - 1100 = 3900 (ticket 28$)
