Setting up equations and inequalities - Module 2 Review

Write the statement as an equation:

7 less than 2 times a number is 13

Write the statement as an equation:

The quotient of 7 and a number is 21.

Write an inequality for the statement:

The product of -5 and a number is greater than 25.

Write an inequality for the statement:

The difference of a number and 7 is no more than 5.

Miko wants to buy a new graphics card for $130. He has $40 saved already and makes $15 per hour at his job. Write an equation you could solve to find the number of hours Miko needs to work to afford a new graphics card.

Two consecutive numbers add up to be 87. Write an equation that would let you solve for the unknown numbers.

An amusement park offers an all day pass for $100 that allows visitors to go on as many rides as they want. Visitors also have the option of paying $10 per ride. Write an inequality that allows you to solve for the number of rides you need to go on for the all day pass to be cheaper.

Streaky Clean offers window cleanings for $50 plus $15 per window cleaned. Crystal Clear offers window cleanings for $30 plus $20 per window. Write an inequality that you could solve to find the number of windows you need cleaned that would make make Streaky Clean less expensive.

Lisa is 2 times as old as her sister. In 3 years, their combined ages will be 21. Write an equation that would let you solve for the sisters' ages.

Jamal has 5 more dimes than quarters. The coins have a total value of $2.95. Write an equation that would let you solve for the number of quarters Jamal has.