Answer:
11.95 dollars
Step-by-step explanation:
Cost of one LED bulb = 6.95 dollars
Cost of changing one bulb = 3 dollars
Life of each bulb = 5 years.
In 10 years, only one time after 5 years the bulbs would have been changed
Hence cost of 100 lamps = 695 and
cost of changing once = 500
Total cost = 1195 dollars for 11 years
Divide this by 10 years to get average cost per year
Cost of 100 lamps per year = 1195/100 = 11.95 dollars
Answer:
$4000
Step-by-step explanation:
Let B represent amount invested in account 'b'.
We have been given that an amount of $12,000 that Boris invested in fund a returned a 6% profit.
So the profit earned from fund 'a' would be 
.
We are also told that the amount that he invested in fund b returned at 2% profit. So the profit earned from fund 'b' would be 
.
Further, both funds together returned a 5%. We can represent this information as:
Now, we will equate profit earned from account 'a' and 'b' with profit earned from both accounts as:
Therefore, Jason invested $4000 in fund 'b'.
Answer:
M = K =
<h3>101°</h3>
Step-by-step explanation:
M = K, because it's a kite.
- Kite has 2 angles on the left and right, each with the same size,
- The kite also has different angles at the other angle points.
(Addition of kite angles result in 360°)
Therefore
360 = 63 + 95 + 2M
2M = 360-63-95
2M = 202
M = 202÷2
M = K = 101°
The size of each angle M and angle K = 101 degrees.
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