Percents

1.

Martha estimated there were 95 marbles in a jar for a contest. The actual number of marbles in the jar was 117. What was the percent error of Martha's estimation?

22%

81.20%

23.16%

18.80%

The camera shop wants to use the measure of central tendency that expresses how successful they are in selling cameras. Which measure of central tendency should they choose?

Using six random samples, the average number of catfish in the samples was 5.7. If the total population of fish in the pond is 200, the proportion of catfish in the pond will be 5.7 20 = x 200. What is the predicted number of catfish in the pond?

Jill had $125 to spend at the mall. She spent 27% of that money on a pair of shoes. Jill spent $___ on the shoes. (Make sure to enter the answer as a decimal number only. Do not enter special characters such as the dollar symbol.)

Hector planted 185 flowers in 2 days. there were 5 volunteers, including Hector. who each plant about the same number of flowers. about how many flowers did they plant? 185, 400,500,1000

Mickayla has a credit card that has a balance of $300 for first 10 days of one of his 30 day billing cycles. She then made a purchase of $1600. Finally she made a payment of $400 on the 25th.

Which way is clockwise and which way is couter clock wise

A random sample of 100 students was taken. Of the 100 students, 50 liked vanilla ice cream, 37 liked chocolate ice cream, and 13 liked strawberry ice cream. If the student population is 1200, how many students like chocolate ice cream? A. 444 B.

Inequality 2x > x + 7 is equivalent to?

What is the result when the number 39 is decreased by 29%?

30. What is the selling price of an article that lists at $1,500 subject to discounts of 40%, 25%, and 10%? (You may use the method described in "Check Your Selling Price.") 31.