Write, solve, and graph an inequality for the followimg:
Jessica wants to order some dvds from Amazon. Each dvd costs $15.99 and shipping for the entire order is $9.99. Jessica can spend no more than $100.
Let x be the greatest number of DVDs that she can order.......then.....
x *(cost of each DVD) + shipping cost ≤ 100 ....so we have
x * 15.99 + 9.99 ≤ 100 subtract 9.99 from each side
x * 15.99 ≤ 90.01 divide both sides by 15.99
x ≤ 90.01 / 15.99 = about 5.6 DVDs ....but she can't quite afford 6, so she must settle for 5
Here's the graph : https://www.desmos.com/calculator/hreijk0scn
Let x be the greatest number of DVDs that she can order.......then.....
x *(cost of each DVD) + shipping cost ≤ 100 ....so we have
x * 15.99 + 9.99 ≤ 100 subtract 9.99 from each side
x * 15.99 ≤ 90.01 divide both sides by 15.99
x ≤ 90.01 / 15.99 = about 5.6 DVDs ....but she can't quite afford 6, so she must settle for 5
Here's the graph : https://www.desmos.com/calculator/hreijk0scn