Math Practice SAT

Jim is able to sell a hand carved statue for $670 which was a 35% profit over his cost. How much did the statue originally cost him?

$496.30

Solve the following equation for A 2A/3 = 8+4A

-2.4

Which of the following is closest to the percent increase in the billions of pounds of plastic produced in the United States from 2000 to 2003?

10%

If 300 jellybeans cost you x dollars. How many jelly can you purchase for 50 cents a the same rate

150X

If sally can paint a house in 4 hours and john can paint the same house in 6 hour, how long will it take for both of them to paint the house together?

2 hours and 24 minutes.

if 8x+5x+2x+4x=114, then 5x + 3=

33

The sum of the digits of a certain two digit number is 7. Reversing its digits increases the number by 9. What is the number?

34

Find the value of two numbers if their sum is 12 and their distance is 4

4 and 8

Jenny has a pitcher that contains 1 gallon of water. How many times could Jenny completely fill the glass with1gallonofwater? 1 gallon = 128 fluid ounces

8 times

Improper Fraction

A fraction whereby the denominator is equal to or greater than the numerator. E.g., 5/4

9a4 + 12a2b2 + 4b4 Which of the following is equivalent to the expression shown above? A. (3a2 + 2b2 )2 B. (3a2 + 2b2 )4 C. (9a2 + 4b2 )2 D. (9a + 4b )4

A is correct

A landscaping company estimates the price of a job, in dollars, using the expression 60 + 12nh, where n is the number of landscapers who will be working and h is the total number of hours the job will take using n landscapers. Which of the following is the best interpretation of the number 12 in the expression? A. The company charges $12 per hour for each landscaper. B. A minimum of 12 landscapers will work on each job. C. The price of every job increases by $12 every hour. D. Each landscaper works 12 hours a day

A is correct

g of x equals a, x squared, plus 24. For the function g defined, a is a constant and g of 4 equals 8. What is the value of g of negative 4? A. 8 B. 0 C. negative 1 D. negative 8

A is correct

Which of the following equations represents a line that is parallel to the line with equation y = −3x + 4? A) 6x + 2y = 15 B) 3x − y = 7 C) 2x − 3y = 6 D) x + 3y = 1 ·

A is correct.

Factor

A number that will divide into another number exactly.

The width of a rectangular dance floor is w feet. The length of the floor is 6 feet longer than its width. Which of the following expresses the perimeter, in feet, of the dance floor interms of w. A) 2w+6 B) 4w+12 C)w2+6 D)w2+6w

ANSWER IS B) 4w+12

Quadratic Equation

An equation that can be written with one side equal to 0. Asks you to find the quadratic polynomial that is equal to zero.

Linear Equation

An equation whereby letters represent real numbers and whose graph is a line.

A gas station sells regular gasoline for $2.39 per gallon and premium gas for $2.79 per gallon. If the gas station sold a total of 550 gallons of both types of gas in a day for a total of 1,344.50 how many gallons of gas were sold? A) 25 B) 75 C) 175 D) 475

Answer is 75 B

3 x plus 4 y equals negative 23 2 y minus x equals negative 19 What is the solution parenthesis, x comma y, close parenthesis, to the preceding system of equations? A. parenthesis, negative 5, comma negative 2, close parenthesis B. parenthesis, 3 comma, negative 8, close parenthesis C. parenthesis, 4 comma, negative 6, close parenthesis D. parenthesis, 9 comma, negative 6, close parenthesis

B is correct

A quality control manager at a factory selects 7 lightbulbs at random for inspection out of every 400 light bulbs produced. At this rate, how many lightbulbs will be inspected if the factory produces 20,000 light bulbs? A. 300 B. 350 C. 400 D. 450 ·

B is correct

The graph of a line in the xy-plane has slope 2 and contains the point (1, 8). The graph of a second line passes through the points (1, 2) and (2, 1). If the two lines intersect at the point (, ) a b , what is the value of a b + ? A. 4 B. 3 C. −1 D. −4

B is correct

If 5x + 6 = 10, what is the value of 10x + 3? A. 4 B. 9 C. 11 D. 20 C

C is Correct

A musician has a new song available for downloading or streaming. The musician earns $0.09 each time the song is downloaded and $0.002 each time the song is streamed. Which of the following expressions represents the amount, in dollars, that the musician earns if the song is downloaded d times and streamed s times? A. 0.002d + 0.09s B. 0.002d − 0.09s C. 0.09d + 0.002s D. 0.09d − 0.002s

C is correct

The measure A, in degrees, of an exterior angle of a regular polygon is related to the number of sides, n, of the polygon by the formula above. If the measure of an exterior angle of a regular polygon is greater than 50°, what is the greatest number of sides it can have? A. 5 B. 6 C. 7 D. 8

C is correct

If the fraction, a over b, equals 2, what is the value of the fraction 4 b over a ? A. 0 B. 1 C. 2 D. 4

Chocie C is correct

For i equals the square root of negative 1, what is the sum parenthesis, 7 plus 3 i, close parenthesis, plus, parentheses, negative 8 plus 9 i, close parenthesis ? A. negative 1 plus 12 i B. negative 1 minus 6 i C. 15 plus 12 i D. 15 minus 6 i

Choice A Is Correct

One pound of grapes costs $2. At this rate, how many dollars will c pounds of grapes cost? A) 2c B)2+c C) 2/c D) C/2

Choice A is Correct

In a random sample of 200 cars of a particular model, 3 have a manufacturing defect. At this rate, how many of1 0,000 cars of the same model will have a manufacturing defect? A) 150 B) 200 C) 250 D) 300

Choice A is correct

h equals 3 a, plus 28.6 A pediatrician uses the model above to estimate the height h of a boy, in inches, in terms of the boy's age a, in years, between the ages of 2 and 5. Based on the model, what is the estimated increase, in inches, of a boy's height each year? A. 13 B. 15.7 C. 19.5 D. 14.3

Choice A is correct

Kathy is a repair technician for a phone company. Each week, she receives a batch of phones that need repairs. The number of phones that she has left to fix at the end of each day can be estimated with the equation P equals 108 minus 23 d, where P is the number of phones left and d is the number of days she has worked that week. What is the meaning of the value 108 in this equation? A. Kathy will complete the repairs within 108 days. B. Kathy starts each week with 108 phones to fix. C. Kathy repairs phones at a rate of 108 per hour. D. Kathy repairs phones at a rate of 108 per day.

Choice B is correct

On Saturday afternoon, Armand sent m text messages each hour for 5 hours, and Tyrone sent p text messages each hour for 4 hours. Which of the following represents the total number of messages sent by Armand and Tyrone on Saturday afternoon? A. 9 m p B. 20 m p C. 5 m plus 4 p D. 4 m plus 5 p

Choice C is Correct

parenthesis, x squared, y, minus 3 y squared, plus 5 x y squared, close parenthesis, minus, parentheses, negative x squared, y, plus 3x y squared, minus 3 y squared, close parenthesis Which of the following is equivalent to the preceding expression? A. 4 x squared, y squared B. 8 x y squared, minus 6 y squared C. 2 x squared, y, plus, 2 x y squared D. 2 x squared, y, plus 8 x y squared, minus 6 y squared

Choice C is Correct

If the fraction whose numerator is x minus 1, and whose denominator is 3, equals k, and k equals 3, what is the value of x ? A) 12 B) 14 C) 19 D) 10

Choice D 10 is correct.

b equals 2.35 plus 0.25 x c equals 1.75 plus 0.40 x In the preceding equations, b and c represent the price per pound, in dollars, of beef and chicken, respectively, x weeks after July 1 during last summer. What was the price per pound of beef when it was equal to the price per pound of chicken? A. $2.60 B. $2.85 C. $2.95 D. $3.35

D is correct

Mixed Numbers

Mixed numbers refer to whole numbers with fractions or decimals. Example 3 1/2 or 3.5.

Greatest Common Factor

The largest number common to each set of factors that divides both numbers exactly.

Hypotenuse

The longest side of a right angled triangle. Always the side that's opposite of the right angle.

What is the value of X 3x+x+x+x-3-2=7+x+x

X=3

2x+3(7-3)=7x-12 What is x ?

x=9