The Grade 8 Students had an end of the year dance. The DJ (disc jockey) they hired charged a flat rate (it is only charged once) of $80, plus $2 for each student who attended the dance. The DJ was paid $196. How many students attended the dance? a. Write an Equation you can use to solve the problem.

b. Solve your equation

c. Substitute to make sure you are correct

224

Step-by-step explanation:

Because if you add 80+2+196 you get 224

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation: