8th Grade Units
What is 8/9
April took out a $600 loan from the bank.At the end of 5 years, she pays back the principal, plus $60 simple interest.What was the annual interest rate?
What is 2%
Olivia has $240 in her bank account.Each month, her bank deducts a$12.50 fee for maintaining a balancebelow $250. If Olivia makes no otherdeposits or withdrawals, how muchmoney will be in her account at theend of five months?
What is $177.50
A grocery store buys oranges from two different farmers. The mean weight of farmer A’s oranges is 8 oz. The mean weight of farmer B’s oranges is 9.1 oz.The MAD of both data sets is 2. What can you infer about the variability of the two sets of oranges?
What is the variability is similar.
Kai randomly surveys eighth graders at his school and learns that 7 of 35respondents own a video gaming system. Based on these data, how many of the 150 eighth-grade students in Kai’s school would be expected to own a video gaming system?
What is 30 students.
Cube A has a volume of 64 cubic meters. Each face of cube B has an area of 25 square meters, which cube is larger?
What is Cube A?
If their food and beverages cost $25.30 and there is an 8% meals tax, how much is the bill? Write your answer to the nearest cent.
$27.32
A community service group organizes a car wash that raises 7s - 18 dollars and a spaghetti dinner that raises6s - 45 dollars. Which expression represents the total amount of money raised?
What is 13s - 63
If i flipped a coin 70 times and it landed on heads 40 times, what was the percent difference between the theoretical and experimental? (Round to the nearest whole)
What is 7%
Rebecca ran 21 miles in 5 hours. If she ran at a constant speed, how many miles did she run in 2 hours?
What is 8.4
What is rational.
Owen and Jesse go to a restaurant for breakfast. A 7% sales tax is applied to their $21.60 bill.If Owen and Jesse add a 15% tip after the tax is applied, what is the total cost, including tip?
What is $26.58
Theo budgets $156 for karate classes.He buys a karate uniform, called a dogi, for $12. If it costs $8 to attend each karate class, which inequality represents the number of classes, c, that Theo can take?
What is c is less than or equal to $18.
If I want to find out the 8th graders preference of fast food and I use every 5th student from an alphabetical list of middle schoolers, is my sample representative?
What is no
Paisley surveyed teachers about the cars they drive. 15 out of 48 teachers drive an SUV. If Paisely randomly surveys another 300 teachers, how many would she expect to drive an SUV?
What is 94
Mrs. Antal wants to build a fence around her garden. Her garden has an area of 81 square feet. How much fencing will she need for her garden?
What is 36 ft.
Eric found that about 62% of80 classmates at school like hip-hop music. However, 70% of his 60 relatives like hip-hop. Do more classmates or relatives like hip-hop? Explain.
Solve for x:
2/3x - 5/6= 1/2
What is 13/4 or 3.25
Explain the difference between theoretical and experimental probabilities?
What is theoretical is what should happen and experimental is what actually happened in the experiment.
Doug entered a canoe race. He rowed 3 ½ miles in ½ hour. What is his average speed in miles per hour.
What is 7 miles per hour.
3x-8-4x=3(-2x-4)+5x
What is no solution.
Claire buys a jacket that originally cost $76. The price is marked down25% for a sale, and Claire has a coupon to further reduce the marked down price by 10%. How much does Claire pay for the jacket?
What is $51.30.
Solve for x:
-3.2(2x - 1) >17.6
What is x<-2.25
If a spinner has 6 equal sections labeled 1-6 and I flip a coin, what is the probability I get a 4 and heads?
What is 1/12
Maxwell’s vegetarian tacos require 3/4 tablespoon of chili powder for every 1/2 pound of vegetables. How much chili powder will Maxwell need if he uses 1 3/4 pounds of vegetables?
What is 2 5/8 tablespoons