Integers
47 + (-12)
35
Combine like terms: 17x + 14 - 11x
What is the denominator of a unit rate?
1
Solve for x
(2/8) = (x/12)
x = 3
What does Keep Change Change mean?
When subtracting integers, keep the first sign, change the subtraction to addition, and change the last sign
15 x (-3)
-45
What are the coefficients in this expression? 67x + 18 - 94x + 34
67 and 94
What does a unit rate tell us?
Rate for 1 item
How do you know if ratios are proportional?
Cross-multiply the ratios and if the numbers are equal, then they are proportional
What are the two methods for adding and subtracting linear expressions?
15 - (-13)
28
(4x + 8) + (5x +7)
9x + 15
Bre listens to 30 songs every 6 hours. How many songs does she listen to per hour?
5 songs
If there were 5 tacos sold for every 10 quesadillas sold, how many tacos would be sold if 80 quesadillas were sold?
40 tacos
What is the GCF?
Greatest Common Factor; highest value that goes into a number evenly
-500 / -25
20
Simplify: 4(7x + 15)
28x + 60
It costs $5.31 for 9 pounds of bananas. How much per pound?
$0.59 per pound
-7
Simplify by identifying the GCF & rewriting this expression: 36 - 48x
12 (3 - 4x)
Park City Bakery sells chocolate chip muffins for $2.19 Hill Street Grocers sells a pack of 4 muffins for $8.44. Which is the better deal?
Hill Street Grocers