Ratios & Unit Rates
How do you know if two ratios are equivalent?
What is absoute value?
The distance a number is away from zero. It is always positive.
If the problem asks you to "evaluate" what does that mean?
Solve it or answer it
What is a coefficient?
The number in front of a variable.
On a test, what should you do if you do not know the answer?
Use process of elimination
Take your best guess
Ja'Sean ran 6 miles in 39 minutes. At this rate, how much time does Ja'Sean take to run 1 mile? Your answer should be in minutes and seconds.
6.5 = 6 minutes and 30 seconds
What quadrant is the point (-7, 5) in?
Quadrant 2
What is an integer?
A positive or negative whole number.
What expression is equivalent to 6h + 5(x + h)?
11h + 5x
Write 37/4 (thirty-seven fourths) as a mixed number
9 and 1/4
Marissa got an 85% on her math quiz. She had 34 questions correct. How many questions were on the quiz?
40 questions
Write the opposite of -12.5 and explain how it is related to -12.5.
They are opposites. They are equal distances from zero.
What is an inequality?
An expresssion that uses the less than, greater than or equal to signs.
Norman needs to purchase gas for a road trip. Gas is $3.55 a gallon. Norman needs g gallons. What equation would Norman use to figure out how much money (t) it cost to get the gas?
t = 3.55g
What is a key word that means add? Subtract? Multiply? Divide?
one answer for each word
Answers will vary
A shirt costs $15.00. How much would you pay if you received a 15% discount?
$12.75
What is the greatest common factor of 48 and 32?
What is the definition of mode?
The number you see the most
Factor the expression: 18x + 30y
6(3x + 5y)
What is the formula to find the area of a triangle?
A= 1/2 x base x height
Wells College used to be an all-girls college. In 2005, the college allowded boys to enroll. The ratio of boys to girls was 3 to 7. If there were 200 more girls than boys, how many boys were enrolled that year. Use a table, graph, or tape diagram to justify your answer.
150 boys were enrolled
Which is less, |-10| or -10.5? Why?
The -10.5 because a negative number is less than a positive number. Absolute value is always positive.
What is true about numbers that are opposites?
They have the same absolute value.
Evaluate the expression:
12 x (3+2)2 รท 2-10
140
What is something that you know about me personally?
Answers will vary