Thirty-five more than .8 times a number is the same as 43 less than the product of -7 and the number
1 answer:
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Answer:
The amount invested at 4.5% was
The amount invested at 5% was
Step-by-step explanation:
we know that
The simple interest formula is equal to
where
I is the Final Interest Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
Let
x -----> the amount invested at 4.5%
9,000-x -----> the amount invested at 5%
in this problem we have
substitute
so
therefore
The amount invested at 4.5% was
The amount invested at 5% was