Answer:
AB is mid-segment of this trapezoid, then we have:
2 x AB = DG + EF
=> 2 x 12 = 5x - 4 + 8x + 2
=> 24 = 13x - 2
=>13x = 26
=> x = 2
=> Option A is correct
Hope this helps!
:)
Answer:
55%
Step-by-step explanation:
$598.99–$385.99
=$213
$213/$385.99 × 100%
=55%
Answer:
The marked up percentage is 112.5%
Step-by-step explanation:
The cost price of the emerald pendant = $400
The selling price of the emerald pendant = $840
Now, the Mark up Price = Selling Price - Cost Price
= $840 - $400 = $450
Also, 
= 
⇒ Percentage of Mark up Price = 112.5%
Hence, the marked up percentage is 112.5%
Answer:
The first number is
72.6
Step-by-step explanation:
Let second number be x.
First number= 6x
Third number= 3x
According to question,
6x+x+3x=121
or, 10x=121
or,x=121/10=12.1
First number= 6x=6×12.1=72.6
Third number=3x=3×12.1=36.3
1) yes
2) x=-4,y=-7
3) x= -3, y=4
4) x= -1, y=2
5) x= -5, y=-8
