Percent Error
TRUE or FALSE
The lower your percent error, the more accurate the estimation.
TRUE
Harry scored a 92 on his 1st test, then a 98 on his 2nd test. Will this be a percent increase OR percent decrease?
Increase
If you have a discount, do you subtract or add from the total?
Subtract
B
C
M
S
Be responsible
Come Prepared
Make an Effort
Show Respect
What is the top number in a fraction called?
Numerator
Mrs. Ryder estimates that 18 people will attend an open house. A total of 30 people actually attend the open house. What is the percent error of Mrs. Ryder’s estimate?
66.6%
Last year, 780 students purchased school pictures. This year, 620 students purchased pictures. What is the percent of decrease in the number of pictures purchased? Round to the nearest tenth if necessary.
20.5% Decrease
$62 flowers; 7% tax
Total cost?
$66.34
REVIEW:
Niko is driving at a rate of 60 miles per hour. If he drives for 3.5 hours, how many miles will he travel?
210 miles.
Put these in order from LEAST to GREATEST
4/5, 85%, .82
4/5 , .82, 85%
Tonya estimates that she will bowl a score of 230 in the tournament. She actually bowls a score of 250. What is the percent error of Tonya’s estimate?
8.6%
Last year, there were 28 students on the academic team. This year, there are 18 students on the academic team.
35.71% Decrease
The cost of a hotel room during Darwin’s trip is $275. The hotel-tax rate in the city where he stayed is 11.5%. What is the total cost of the hotel room?
$306.63
What is the sales tax rate in Kentucky?
6%
REVIEW: What are the 2 rules for a graph to be proportional?
- straight line
- goes through the origin
The manager of the local trampoline park estimates that 3,000 people will come to the park the first month it is open. A total of 5,600 people come to the park the first month. What is the percent error of the manager’s estimate?
86.66%
Lee made $20 after 1 hour, $55 after 2 hours, and $98 after 3 hours.
Find the PERCENT of CHANGE from Hour 2 to Hour 3.
78.18% Increase
A dog groomer charges $39.50. The dog’s owner wants to give a 15% tip. What would be the total cost, including the tip?
$45.43
Bobby answered 12 out 20 correctly on a test.
Eric scored a 72%
Taylor answered 19 out of 25 on a test.
Put in order from least to greatest
Bobby, Eric, Taylor
Who sings the song "God's Plan"
Drake
A swimmer estimates that she will swim 42 miles this month for practice. She actually swims 36.5 miles. What is the percent error of the swimmer’s estimate, rounded to the nearest hundredth?
13.09%
Ryan fixed 18 cookies after 1 hour, 44 cookies after 2 hours, and 68 cookies after 3 hours.
What is the PERCENT of CHANGE from Hour 1 to Hour 3?
277.77% Increase
An appliance store is having a 35%-off sale. Angela wants to purchase a new freezer that has an original price of $675. What is the sale price of the freezer?
$438.75
Name this song.
Don't Stop Believing.
95