Answer:
The amount invested at 4% was $3,000 and the amount invested at 7% was $8,000
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
in this problem we have
substitute in the formula above
solve for x
so
therefore
The amount invested at 4% was $3,000 and the amount invested at 7% was $8,000
It would be 100. Because let's say you had to round 25 to the nearest 10 it would be 30 because everything ending with 5 (example: 5 to nearest 10 would go to 10 65 to the nearest ten would go to 70) but anything lower then 5 goes to the lower number.
A number denoting quantity (one,two,three,etc) as opposed to a ordinal number ( first,second,third,etc)
4x+4= 6x -9 ( corresponding angle post.)
4x = 6x -13
-2x = -13
X= 13/2
Hope this helps!
The answer is -9. Have a great day