Answer: Option (A)
Step-by-step explanation:
Let the original price of the clock be "x
"
<em>The clock is then resold to a collector = x + 20% of "x
"</em>
<em>= x + 0.2x</em>
<em>= 1.2x</em>
Now, the shop re-buy the clock at a price = <em>
</em>
<em>
</em>
<em>= 0.6x
</em>
Therefore,
<em>Original Cost - Buy-Back price = $100</em>
<em>⇒ x - 0.6x = 100</em>
<em>⇒ x = 250 </em>
Hence , the selling price of the clock for the second time is
<em>
</em>
<em>= $270
</em>
<em></em>
Answer:
2
Step-by-step explanation:
To find the slope, we use the equation
m = (y2-y1)/(x2-x1)
Since the have the points (2,-4) and (4,0)
m = (0--4)/ (4-2)
= (0+4)/(4-2)
= 4/2
=2
40min*1.05=42min they spent 42 min together
ps: check the multiplication it's 01:30 and I did that in head
The answer to this problem is “C “