Question

Instructions Ensure to perform the following questions. (5 pts each)

1.) When I think of a number, double it and add seven, I get 23. Determine the number that I first thought of.(3 pts.)


2.) I think of a number, double it and subtract three. The result is 12. What number did I think of? (4pts.)

3.) 9 books are to be bought by students. Some cost $6 each and the remainder cost $6.50 each. If the total amount spent was $56, how many of each are bought?

4.) A student went to a bookstore and bought x books costing $5.50 each and y books costing $5.50 each and y books costing $8.50 each. She spent $53.00 and bought a total of 8 books. Find the number of each book bought.


5.) The sides of a rectangle are x cm and 5cm. Its perimeter is 40 cm. Determine the value of x.

Answer 1

Oops so long it is easy don’t want to answer