An investment of $5,000 is made at a simple annual interest rate of 3%. How much additional money must be invested at a simple a
1 answer:
Answer: Additional money is $6250.
Step-by-step explanation:
Since we have given that
Amount of investment = $5000
Rate of simple interest = 3%
Let the additional amount of investment be 'x'.
Rate of simple interest = 3.9%
Total annual interest rate on total investment = 3.5%
So, According to question, it would be
Hence, Additional money is $6250.
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Answer:
The original price is $90.
Step-by-step explanation:
100% - 40% = 60%
y × 60 = 54 × 100
60y = 5400
60y ÷ 60 = 5400 ÷ 60
y = 90
Answer:
15
Step-by-step explanation:
To find the minimum amount of items, x, that need to be sold for the manufacturer to make a profit, we can use the quadratic formula
In context of the problem, we can only rely on the positive value, as the negative value would lead to a loss of profit.
Furthermore, we must round to the nearest whole number, as you cannot make part of an item.
Lastly, if you were to plug in 14 into the equation for Profit, you would still have a negative number (i.e. a negative profit), thus requiring the manufacturer to make no less than 15 items to make a profit: