Ratios & Proportions
How can you tell by looking at a graph that it is proportional?
What is it is a straight line that goes through the origin.
The graph of x < 89 would be what kind of circle and which direction would the arrow go?
What is open circle; Left
What is the decimal equivalent to 9/11?
What is 0.8181818181818181...
What is the probability that an event is certain to happen?
What is 1
What type of lines intersect to form right angles?
What are perpendicular lines.
How do you solve for the constant of proportionality? What letter is used to represent it?
y/x; k
In the inequality x + 9 > 9, can x = 0? Explain.
What is yes, because x can be greater or equal to 0.
Simplify the following expression: 7x + 4y - 10x + 2y - 6y
What is -3x
Margo pulls a random card from a standard deck of playing cards. What is the probability that she drew a black card?
What is 26/52 or 1/2
What is the supplement of 101o?
What is 79o.
Dave calculated that the $60 he had saved so far was 3/8 of the amount needed to buy the TV he wanted. How much money was needed to buy the TV Dave wanted?
What is $160
Solve for x: -2x + 4 = 12
What is -4
Simplify using the distributive property: 4(3a^3 - 2a^2 + 5)
What is 12a^3 - 8a^2 + 20
Sam's church is holding a raffle. The prizes are a bicycle, a $10 mall gift card, or nothing at all. If the probability of winning nothing is 48% and the probability of winning a bicycle is 18%, what is the probability of winning a gift card?
What is 34%
Two angles are considered vertical angles. If one the angles measures 120 degrees and the other angle is labeled as 30a, what is the value of a?
What is 4.
Sadie wants to buy a new dog collar that is on sale for 25% off. If the sale price of the dog collar is $6.25, how much was the regular price?
What is $8.33
Solve the following equation: 8(c - 3) + 9 + 7c = 45
What is 4.
The diameter of a circle is 10 cm. What is the circumference of the circle rounded to the nearest hundredth?
What is 31.42 cm
Jack rolls a number cube and Jill draws a card from a standard deck of playing cards. What is the probability that Jack got a number less than 6 and Jill drew a diamond?
What is 65/312 or 5/24
An angle and its complement are in a ratio of 3:7. Find the measures of the angles.
What is 27o and 63o.
A scale drawing of a school has a scale of 1 inch: 9 feet. In the drawing, the front entrance is 1 3/4 in. wide. How wide is the front entrance on the school?
What is 15 3/4 feet or 15.75 feet.
Fred joined an online movie club. There is an initial fee of $30 and each movie he orders cost $2.25. If he can only spend $150 for the year, what is the maximum number of movies he can order?
What is 53 movies.
A school store is able to obtain binders for the wholesale price of $0.75. The retail price of the binders is 160% higher than the wholesale price. Find the retail price of the binders.
What is $1.95
A bag of granola bars contains 5 Chocolate Chip, 4 Peanut Butter, and 3 Oatmeal Raisin. Eryn randomly selects a granola bar from the box to eat. Then Seth randomly selects a granola bar from the box to eat. What is the probability that both Eryn and Seth will select peanut butter?
What is 12/132 or 1/11
Two angles are supplementary. One of the angles is 5x - 5 and the other angle is 7x + 149. Find the value of x and then the measures of each labeled angle.
What is 3. The first angle measures 10 degrees and the second angle measures 170 degrees.