Did you know? The SAT Math section focuses on 3 areas of math: Heart of Algebra, Problem Solving and Data Analysis, and Passport to Advanced Math. It’s important to know the following conversions: inches to feet-divide by 12 feet to inches-multiply by 12 minutes to hours-divide by 60 hours to minutes-multiply by 60 minutes to[…]
Both the SAT & ACT Math sections involve the manipulation of equations and solving linear systems. Percent change formula: [(new-old)/old]*100 When you raise an exponent to another power, you multiply the 2 exponents. When you multiply the bases, you add the exponents. For linear functions start with slope. Solve for slope then set up y=mx+b.[…]
In the year 2000, the town of Smallville had 800 residents. The town grows 4% annually. Find the population in 2005.
Tim buys a soda with an initial price of $1.55. Find the price after 2 consecutive discounts of 7% and 8%.
Alan initially has 17 friends. He loses some and then has 13 friends. Find the percent change in friends that he has.
The final price of a computer is $365. This is after a 19% tax and 22% discount. Find the initial price.