– 10 – 6 3. 4.
The answer will be an inequality and a graph that show all the possible amounts of money that Sami can spend. List important information:
Example 1 Continued Write an inequality. Amount remaining plus amount used + 14 is at most ≤ $30. 30
Example 1 Continued – 14
Example 1 Continued Check the endpoint, 16. Check a number less than 16. 16 + 14 30 30 30 Sami can spend from $0 to $16. 6 + 14 ≤ 30 20 ≤ 30
Example 2
Example 2 Continued The answer will be an inequality and a graph that show all the possible amounts of iron that Sami can consume to reach the RDA. List important information: • The RDA of iron for Sarah is 15 mg. • So far today she has consumed 11 mg.
Example 2 Continued Write an inequality. Amount taken 11 plus + amount needed is at most 15 mg 15
Example 2 Continued – 11
Example 2 Continued Check the endpoint, 4. Check a number less than 4. 11 + 4 15 15 15 Sarah can consume 4 mg or less of iron without exceeding the RDA.
Example 3 $475 plus 475 + amount can add is at most $550. ≤ 550
Example 3 Continued – 475 475 + 75 550 550 475 + 50 ≤ 550 525 ≤ 550 Mrs. Lawrence is willing to add $75 or less to the bid.
Example 4 Jill has a $20 gift card to an art supply store where 4 oz tubes of paint are $4. 30 each after tax. What are the possible numbers of tubes that Jill can buy? 4. 30 ≤ 20. 00
Example 4 Continued Since Jill can buy only whole numbers of tubes, she can buy 0, 1, 2, 3, or 4 tubes of paint.
Example 5 A pitcher holds 128 ounces of juice. What are the possible numbers of 10 -ounce servings that one pitcher can fill? 10 ≤ 128
Example 5 Continued The pitcher can fill 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 servings.
Example 6
Example 6 Continued – 38 Rent-A-Ride costs less when the number of miles is more than 85.