COLLEGE MATH REVIEWER

"The sum of Kim's and Kevin's ages is 18. In 3 years, Kim will be twice as old as Kevin. What are their ages now?"

"5, 13"

"One number is 5 less than another. If the sum is 135, what are the numbers?"

"65, 70"

A mother gave $500 to his two daughters. He gave X dollars to one daughter. Which of the following expressions correctly shows the amount he gave to the other daughter.

$500 - X

"If 4y3 + 18y2 + 8y - 4 is divided by 2y + 3, the remainder is:"

11

"Roberto is 25 years younger than his father. However, his father will be twice his age in 10 years. Find their ages now."

15 and 40

"Ana is 5 years older than Beth. In 5 years, the product of their age is 1.5 times the product of their product ages. How old is Beth now?"

20

"The sum of the digits of a two-digit number is 11. If the digits are reversed, the resulting number is seven more than twice the original number. What is the original number?"

38

In a college mathematics exam taken by 300 students, 28% received a grade higher than 2.00, 59% received a passing grade that is less than or equal to 2.00, while the rest received an IP grade. How many students got an IP?

39

The second angle of a triangle is double the first, while the third angle is 10 degrees greater than the first one. Find the measures of the angles.

4x + 10 = 180

How many liters of water must be added to 35 liters of 89% hydrochloric acid solution to reduce its strength to 75%?

6.53 liters

"The sum of two numbers is 21, and one number twice the other. Find the numbers."

7 & 14

"Six times the middle digit of a three-digit number is the sum of the other two. If the number is divided by the sum of its digits, the answer is 51 and the remainder is 11. If the digits are reversed the number becomes smaller by 198, find the number."

725

Simplify: 5a + 2b - b + 4a

9a + b

Dave has B bats and buys C bats more. He then gives away D bats. Which of the following algebraic statements correctly shows how many bats Dave has left?

B + C - D

3.23245561...

Irrational

3.333333

Rational

The operations in mathematical expressions must be evaluated in a systematic order,

True

True or False? -3ab + 4ac - 2ad = -(3ab - 4ac + 2ad)

True

True or False? 3:5 = 3/5

True

Two or more equations are equal if and only if they have the same _____.

solution set