Math Practice With Investments and Returns
Alan invests in 4 stocks, each with a different return. Find average return: Red stock: +$4 Blue stock: +$5 Yellow stock: $0 Orange stock: -$3
Practice Math for the ACT/SAT With This Problem
9a-10=15b and 18a-20=100b. Find all solutions for a and b.
Sample Math Problem
The total cost of a party is $185. If the cost is shared equally by f friends, how much does each friend spend?
Example Math Problem
Alan owns 40% more stocks than bonds. If he owns $380 in stocks, how much money does he have invested in bonds?
Math Practice With Lines
Line s passes through (2, 5) and is perpendicular to 5x-4y=20. If line s is written in y=mx+b notation, find b.
Mastering Math for the ACT/SAT
Many economists think that the price of oil has a negative, linear relationship to stock prices. Suppose that the stock market has a base value of 5,000 points even when oil is free or the price of oil is zero. Years later, economists realize that the actual base value of the stock market when oil[…]
