One month, ruby worked 6 more hours than Issac, and Svetlana worked 4 times as many hours as Ruby. Together they worked 126 hour
1 answer:
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I'm assuming you meant:
Let
Thus, we can rewrite it into a quadratic.
Hence,
or 
or 
Rewriting it in general form, we get:
From there, you can find your solutions from
Let
Thus, we can rewrite it into a quadratic.
Hence,
Rewriting it in general form, we get:
From there, you can find your solutions from
Answer:
Step-by-step explanation:
we know that
The compound interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
substitute in the formula above