Find the cost of 1 kilogram, by dividing the cost of 2 by 2:
4.50 / 2 = $2.25 per kilogram.
Now multiply the cost of 1 by 3:
2.25 x 3 = $6.75 for 3 kilograms.
15.6 / -3 = -5.2 (positive divided by negative is negative)
Answer:
The amount of money that should be invested at the rate of 5.25% is $12,000 and the amount money that should be invested at the rate of 4% is $13,000
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 of money that should be invested at the rate of 5.25%
25,000-x -----> the amount money that should be invested at the rate of 4%
in this problem we have
substitute in the formula above
Solve for x
therefore
The amount of money that should be invested at the rate of 5.25% is $12,000 and the amount money that should be invested at the rate of 4% is $13,000