Shop
-
Extra SAT Math Practice Volume 1$11.95 -
Math Guide (4th edition)Sale!$29.99$24.99 -
SAT Math Guide ONLINE: 1 Month AccessSale!$8.00$6.00 -
SAT Math Guide ONLINE: 3 Months Access$16.00
Popular Destinations
- Official SAT practice tests
- Solutions to official SAT practice tests
- Ask a Q&A question
- Recommended reading
Subscribe
Recent Posts
Is there a way to solve this system of equations without using the quadratic formula (or graphing)?
November 17, 2019
Try a chapter from the Math Guide Online for free
November 15, 2019A bunch of folks have asked me if there’s a free trial for the new Math Guide Online. Well, at launch there wasn’t but now there is! You may now try before you buy: anyone can view the Quadratics chapter and take the quizzes therein. You still need to be registered for at least free (more…)
In the equation below, the angle measures are in radians and a is a constant…
November 14, 2019In the equation below, the angle measures are in radians and is a constant.
𝑠𝑖𝑛(𝜋/8)=𝑐𝑜𝑠(𝜋/𝑎)
Which of the following could be the value of ?
Available now: SAT Math Guide Online
November 11, 2019For the past few months I’ve been working on an online, interactive version of PWN the SAT: Math Guide, and I’m excited to announce that subscriptions are available now in the PWN store!
The country hall charges a rental fee of $1000 and at least $3000 for food. Olivia is planning a class reunion…
November 7, 2019The country hall charges a rental fee of $1000 and at least $3000 for food. Olivia is planning a class reunion. If she had chosen a buffet that costs $38.56 per person what is the minimum possible number of people who must attend to support the expense?
there are 50 questions on a quiz given to a class of a students…
October 22, 2019there are 50 questions on a quiz given to a class of a students. Only 20% of the class answered all the questions on the quiz. Of the remaining students, half answered two-fifths of the questions and the other half answered three-fifths. What was the average number of questions answered on this quiz?
In the sequence above, each term after the first is equal to 1/3 of the term immediately before it…
October 17, 201927/5,9/5,3/5
38.In the sequence above, each term after the first is equal to 1/3 of the term immediately before it. what is the value of the first term in the sequence that is less than 1/20.
If the value of a is 7, which of the following is a possible solution to the system of inequalities
October 5, 2019y > -½ x + a
y > 2 x – a
If the value of a is 7, which of the following is a possible solution to the system of inequalities above?
A) (2, 6)
B) (4, 5)
C) (5, 4)
D) (5, 3)
Is there a better way than plugging in the answers to solve this?