Test Your Functions Knowledge

f(a)=2a2-80 If f(2c)=100, what is the value of c? x∆y=4x-2y+3xy This describes a relation for any two real numbers, x+y. If (2a+1)∆4=50, find the value of a∆a? c∇d=4ac+2cd+8d-8 If 4∇5=240, find 2∇3. Sales (s) are a function of price (p). s(p)=2p-14c+1800. When price is $8.00, sales are $1800.00. What should price be in order for sales to reach[…]

SAT/ACT Math Problem Set

What is one possible value of F  ? 23>12f–20>76 When y=kx, k is a constant and when y=50, x=12. Find y when x is 5. If a=kb where k is a constant. When a=10, b=20. Find b when a=15. 8+12x is 18 more than 35. What is the value of 20x. For what value of n is[…]

SAT/ACT Math Practice Problems

36n+36n+36n=181 Find all values of n. x+y=80 and x–y=5. Find the value ofx+y. n people purchase a gift (g) for $l. m people purchase another gift (p) for $q. If n>m and l<q, find the difference in price between g and p. The total cost of a party is $185. If the cost is shared[…]

Math Problem Set

The final price of a computer is C dollars. This is after a 15% off coupon, 8% sales tax and 4% employee discount. Find an expression for I, the initial price, in terms of the final price. The quantity of pens supplied can be described as a function of price (p) such that s(p)=80+4p. The[…]

SAT/ACT Math Practice

Frankie drives 80 miles in 3 hours and another 75 miles in 5 hours. What is the value of his average rate? The Eagleneck gym has 6 bikes that 9 athletes want to use. At 5pm they randomly select one athlete per bike. If Alan, Bob, Caryn, Darrel, Edgar, and Frank are 6 of the[…]

There’s No Such Thing As Too Much Math!

In a bag there are 6 blue marbles, 4 red marbles, 7 yellow marbles, and 3 white marbles. How many which should be added so p(white) becomes 34? Staples now sells their own notebooks. Making notebook has a fixed factory cost of$6,000 and a per unit cost of $0.58 per notebook. Staples sells these notebooks[…]

TIP: Know How to Solve These 10 SAT/ACT Math Problems

1. Line q passes through (s, s+4) and is perpendicular to line r. If line r follows , find the value of . 2. Line n intersects the y-axis at 5 and is a horizontal line with a slope of zero. Line n intersects at which point? 3. A right circular cylinder with volume is inscribed[…]

SAT Math Practice!

F(m)=2m²-10m. If F(66)=18b, find all values if b X∆y=3x-2y+xyz If 4∆5=100, find the value of 8∆10 m=3m³-8   If 4g-18, find the value of g Sales is a function of price such that: S(p)=4p²-80+c When the sales is $60,000 price is 10. Find the sales when the price is 20.

SAT Math Overview

What is the New SAT Math? What does it cover? It’s About the Real World Instead of testing every math topic, the questions ask you to use the most commonly used math formulas. The Questions for on math that you’ll need in college classes, future jobs, and personal life. Quick Facts Most math questions will[…]

TIP: Know How to Solve These Math Problems

In a downtown building, there are 6 floors and the number of rooms on each floor is R. If each room has exactly C chairs, which of the following gives the total number of chairs in the building? Mindy’s average monthly salary for the first 4 months she worked was $300. What must her average[…]