Rational Numbers
Solve.
-6 (3 -2.4)
-3.6
A shirt costs d dollars. The total cost including 7% sales tax is represented by 1.07d. Which expression is equivalent to this?
d + 0.07d
Write a number sentences to show the distance between a bird and fish on a vertical number line. The bird is at 2 and the fish is at -7.
2 - -7 = 9
The graph shows points (12,4), (24,8), (36, 12).
What does point B at (24, 8) represent?
Of the 80 students who auditioned, 50% were asked back for a second audition. After the second audition, 8 students were asked back for a final audition. What percentage of students from the second audition were asked back for the final audition?
20%
Jeff buys 9 kits. Each kit contains 21 screws and x boards. He writes
9 (x + 21) = 225
What does x represent?
Number of boards in 1 kit
During cooking, a chicken loses 10% of its weight. To obtain 11,520 grams cooked, how many grams uncooked are needed?
10,368
Solve the inequality and show the solution on a number line:
5x - 5 < 20
What values of x make the inequality true?
x < 5
The cost of peaches can be seen on a graph with the points. (1, 0.75), (4, 3), (8,6). Which is a true statement?
A) There is a proportional relationship between the number of peaches and the cost because of the x-value is always greater than the y-value.
B) The point (1, 0.75) can be used to represent the unit rate of 0.75 dollars per peach.
C) The point (1, 0.75) can be used to determine the total cost by subtracting of 0.25 from the number of peaches.
What is 10% of 100.
10
Jeff's equation is
9x + 21 = 225
What is the value of x?
4
The original price of a shirt is $19.00. It is discounted by 25%, then a 6% sales tax is added. What is the final price (rounded to the nearest cent)?
$15.11
Solve this inequality.
2x + 4 < 20
x < 8
A graph has a point at (7, 56). Use drop-down style language: The number 56 represents ___________ and the number 7 represents ___________.
56 markers
7 packages
Alicia shoots 100 free throws. She hits the backboard and misses with 1/4 of her shots, hits the rim and misses with 39% of her shots, and makes the rest. How many baskets does she make?
36
Simplify the expression.
-3(x - 4)?
-3x + 12
A satellite is 16 meters wide. A scale model uses 1 cm : 2 m. How wide is the model (in centimeters)?
8 centimeters
How would I graph this inequality on a number line?
x < 8
Open circle going to the left
Which equation would show the constant of proportionality for the table about grape prices?
A) p = g + 2.75
B) p = g - 2.75
C) p = 2.75g
D) p = g/ 2.75
C
Which sampling method is BEST for a for determining the preferred process for collecting recycling materials from the residents of Mapleton?
Survey 50 randomly selected residents of Mapleton?
A processing machine crushes 2 1/4 kilograms of dried fruits in 3/4 minute.
What is the rate in kilograms per minute?
3
A store applies discounts by total price: up to $50$50 → 20%20%, more than $50$50 up to $100$100 → 25%25%, more than $100$100 → 30%30%. Henry selects 2 shirts (12.9912.99 each), 2 pants (21.9921.99 each), and 1 pair of shorts (16.5016.50). What discount percent should he receive?
25%
Lance rode 1010 km Monday. Tuesday he rode 25%25% further than Monday. Wednesday he rode 5%5% further than Tuesday. How far did Lance ride on Wednesday?
13.13 km
Mr. John surveyed his class of 28 students about their favorite fruit.
What percentage of his students said their favorite fruit was apples if 7 students said that apples were their favorite?
25%
The principal of a middle school will survey students to determine which sports team should receive new uniforms.
Which sampling method would be BEST for the principal to use?
Surveying 60 students randomly selected from all lunch periods