Vocabulary
the set of whole numbers and their opposites
What are integers?
David downloads 8 apps onto his tablet in 12 seconds. At this rate, how many apps could he downland in one minute?
What is 40?
Last month, the online price of an electric bike was $250. This month, the online price is $330. What is the percent of increase for the price of the bike?
What is 32%?
-3 + (-8)
What is -11?
Write as a decimal: -4/5
What is -0.8?
A number that can be written as a ratio of two integers, a and b, where b is not zero.
What is a rational number?
A salad dressing calls for 3 parts oil and 1 part vinegar. Marie uses 2 tablespoons of vinegar and 6 tablespoons of oil to make her salad dressing. Is the situation proportional? Explain.
Yes, both are 3:1.
Find the total cost to the nearest cent:
$24 shirt; 6% tax
What is $25.44?
9-(-2)
What is 11?
Write as a decimal: 2/9
What is 0.2 (repeating)?
Two quantities are __________ if the ratios comparing them are constant, or equivalent.
What is proportional?
A 6-ounce package of fruit snacks contains 45 pieces. How many pieces would you expect in a 10-ounce package?
What is 75 pieces?
Find the sale price to the nearest cent:
$140 coat; 10% discount
What is $126?
-10(-10)
What is 100?
-6.2 - 3.79
What is -9.99?
a ratio that compares 2 quantities in different units
What is a rate?
A baker, in 70 minutes, iced 40 cupcakes and, in 49 minutes iced 28 cupcakes. What is the constant of proportionality?
What is 1.75?
Mrs. Hallway works in a jewelry store and earns an 8.5 % commission on every piece of jewelry she sells. How much commission would she earn for selling a necklace that costs $4,600?
What is $391?
-39 / 13
What is -3?
1/4 + (-3.7)
What is -3.45?
When one or more digits repeat infinitely.
What are repeating decimals?
The total cost of renting a popcorn machine for 4 hours is $72. What equation can be used to model the total cost (y) for renting the popcorn machine for x hours?
What is y = 18x?
Find the simple interest earned, to the nearest cent, for the principal, interest rate, and time given:
$750; 7%; 3 years
What is $157.50?
10(-3)(4)-(-15)
What is -105?
Find the additive inverse of 9/10.
What is -9/10?