The ratio of cars and trucks in a parking lot is 3 to 5 if 90 cars are in the parking lot how many trucks are there

150 Trucks

To get to 90 from 3 you would multiply by 30. So multiply 5 by 30 to get 150. Ratio: 90:150

A.) First account: First, I multiplied 4,000 by 0.0525 to get 210. Then, I multiplied the total by 0.5, because 6 months is equal to half a year (1/2) and 1/2 = 0.5. So, 210 times 0.5 is 105. There will be $105 in the first account after 6 months.  

Second account: First I multiplied 2,000 by 0.06 to get 120. Then I multiplied 120 by 0.5. I got 60. There will be $60 in the second account after 6 months.  

B.) The difference in the amount of interest earned would be $45. I did this by subtracting 60 from 105.  

C.) The first account has my money working for me the best. The first account gives me the most money because I have more money in the account to start out with, than in the second account. Yes, the interest rate is higher in the second account, but since I have more money in the first account, I am receiving more money with the first account's interest rate.