This document contains a math practice exam for 4th period with questions in the following categories: 1) Simplifying expressions 2) Solving equations 3) Problem solving including percent problems and areas of shapes 4) Exponents and probability problems The exam is to prepare for an upcoming math exam for the school year 2009-2010.

1. COLEGIO SAN PATRICIO
Math Practice for 4th Period Exam
School Year 2009 – 2010
Name _____________________________________Teacher____________________________
Date___________________________________________List No.__________7th_____________
I.- Simplify the expression:
1) 24 – 6x + 42 = ________ 2) 12x + (6 – x) 4=__________ 3) -9x(6x +18)=__________
4) (4x-5)(6) +x=________ 5) -4(x – 3)=__________ 6)3x + 2x² - 9 + x + 7 = ______________
II.- Solve the equation:
7) 60x = 30x + 60 8) 25b = 135 + 15 9) -3 + n = 0 10) y - 80 = 80 11) x = 4 + 5
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11) 6x + 4 = 2x + 16 12) 3y – 7 = 4²- 11 13) 8x + 4 = 7x + 11 14)72 + 8 = x + 68
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III.- Problem Soving.-
15. The spelling and grammar test was taken by 217 students. Thirty-seven failed.
What percent passed?
a). 13 b). 17 c). 83 d). 87
16. Last year, the school spent $8,300 for office equipment. This year, it will spend
5 percent less. How much will it spend this year.
a). $7,885 b). $7,737 c). $6,640 d). $6,690
17.- There are 30 students in 7th H, 14 of them play football. What percent of the
students in 7th H play football?
18.- Yesterday I bought a CD that was on sale at $30. It was 25% its original price.
What was its original price?

2. 19.- In a concert 75% of the attendants were on time. If there were a total
of 560 people. How many were on time? How many were late?
20.- How many outcomes would you have if you throw three coins to the air?
IV.- GEOMETRY.- Draw and find the area of:
21- A triangle which measures are 5cm, 9cm and an angle of 50°.
Remember the steps:
1.- trace a line segment, (any of the 2)
2.- measure the angle,
3.- trace the other line segment,
4.- trace the third line segment to finish the triangle.
5.- measure the height to find the area.
22- A rhombus which diagonals measure 6cm and 4cm.
23- Can you trace a triangle which measure are 4cm, 3cm 5cm. If it is possible,
Trace it and find the area.
24.- Find the area of a circle that has a diameter of 12 cm:

3. 25.- How much would I need to cover the football field with grass if it measures
20m length and 12m width?
26. Make a pie graph for each set of data below. Label sections by coloring each section of the graph and
creating a key. Give each graph a title.

4. Favorite
Web Site
Votes
Percent
Degrees
AOL
(Homepage)
4
Lycos
3
MSN
7
Napster
13
Yahoo
8
Total
35

5. V.- EXPONENTS
27.- 3²=_____ 28.- (y + 3)²= _______, y= 2 29.- x² + 8=_____, x=2 30.- x³ =____, x=4
31. En una urna hay 6 bolitas blancas, 3 bolitas amarillas y una bolita roja. Extraemos al azar una bolita y nos
fijamos solamente en su color. ¿Cuál es la probabilidad de que la bolita extraída sea de color blanco?
a. 6/10 b. 3/10 c. 4/10 d. 1/10
32. ¿Cuál es la probabilidad de obtener un número mayor que 2 al lanzar un dado?
a. 4/6 b. 1/6 c. 2/6 d. 3/6