Work out 2 / 5 + 1 / 5 Give your answer in its simplest form.

1. Two students in different classes took the same math test. Both students received a score of 87. In student A's class the mean was 78 and the standard deviation of 5. In student B's class the mean was 76 with a standard deviation of 4.

Which equation supports the given conjecture? The difference of two odd numbers is an even number. A. 23 - 19 = 4 B. 16 - 10 = 6 C. 17 - 12 = 5 D. 3 + 5 = 8

The first and last terms of a 52-term arithmetic series are listed in the table. What is the sum of the series? Term Number Term 1 1 52 154

In the figure above, ABC and XYZ are similar figures. If the length of side AC is 5 units, the length of side BC is 8 units, and the length of side XZ is 25 units, what is the length of side YZ? A. 45 units B. 60 units C. 40 units D. 300 units

Rasheed is buying wings and quesadillas for a party. A package of wings costs $8. A package of quesadillas costs $10. He must spend no more than $160. Rasheed's freezer will hold a maximum of 20 packages of wings and quesadillas.

A type of fish for your aquarium costs $3 each. You can spend at most $21. How many of these fish can you buy? Write an inequality to model the problem. Then solve the inequality to find the number of fish. Let f be the number of fish you can buy.

Imagine that 200 mice are sent through the maze one at a time. The researchers believed that the probability of a mouse turning left due to the food is 0.7. How many left turns would they expect from 200 mice?

If you have a 3 pound bag how many one ounce bags can you make

A bag contains 15 cards numbered 1 through 15. a card is randomly chosen from the bag. what is the probability that the card has an odd number on it?

Consider circle C with radius 5 cm and a central angle measure of 60°