Answer:
Simplify the expression
SO that gives you Answer of - 13f - 2 Hope this helps :)
Step-by-step explanation:
A folder costs 1.15 more than a pen, so a pen is x, folder is x+1.15
COST = 6x + 3(x + 1.15)
An equation for this problem is
Cost = number of pens(x) + number of folders (x + 1.15)
Answer:
There are 3 angles on a straight line : WYX, WYV, VYZ
now,
given, (WYV = 6x - 12) , (VYZ = x + 16) ,
(WYX = VYZ) { They are opposite angles}
.
Sum of all the angles will be 180°
WYX + WYV + VYZ = 180°
(6x - 12) + (x + 16) + (x + 16) = 180°
6x - 12 + 2x + 32 = 180°
8x + 20 = 180°
8x = 180° - 20°
8x = 160°
x = 160°/8 = 20°
now,
put the value of 'x' in WYV i.e. (6x - 12) = (6*20 - 12) ° = (120 - 12) ° = 108°
hence, WYV = 108°
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13x−4=−36−27x+12: Distributive property
13x−4=−24−27x: Combine like terms
40x=−20: Addition Property of equality