Answer:
Amount invested at 8% is $9000 and amount invested at 18% is $21000.
Step-by-step explanation:
Let amount invested at 8% be x.
Let amount invested at 18% be y.
We get the 1st equation as:
........(1)
We get the second equation as:
=> 
or getting rid of the decimal by multiplying by 100 on both sides.
........(2)
Multiplying (1) by 8 and subtracting from (2) we get
So, y = 21000
And 
So, x = 9000
Therefore, amount invested at 8% is $9000 and amount invested at 18% is $21000.
Basically, you try to find 2 numbers that divide to 3/2. So, using trial and error, plug in numbers for x in this expression: x/24=3/2, and solve to find the number that makes it true. You end up getting 36/24=3/2. Hope that helps! :)
Answer:
A) Fifth Period.
B) Fourth Period
C) I dont get this one. If you can explain what they mean, I will be happy to help!
Step-by-step explanation:
Answer: 45/64
Step-by-step explanation: To multiply fractions, first multiply across the numerators and then multiply across the denominators.
So here, we have 9 × 5 which is 45 and 8 × 8 which is 64. So now we have 45/64.
The fraction 45/64 is in lowest terms so this is our final answer.
