X+y=14 (*25)
35x+25y=410
---------------------
35x+25y=410
25x+25y=350
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10x=60
x=6
Percent markup=amountmarkedup/original times 100
amountmarkedup=25-13.5.5=11.5
original=13.5
percent markup=11.5/13.5 times 100=0.85 times 100=85% markup
Answer:
Option (3). 120° will be the answer.
Step-by-step explanation:
By using the theorem of secants intersecting externally,
Measure of angle formed by two secants, from a point outside the circle is half the difference of the measures of the intercepted arcs.
m∠C = 
36° = 
72° =
°
= 72 + 48
= 120°
Therefore, Option (3) is the answer.
Step-by-step explanation:
(64y100)1/2
1/2×64y 1/2×100
32y50
Answer:
you can either factorise or use tge formula method