9514 1404 393
Answer:
yes
Step-by-step explanation:
We can substitute the proposed solution values and see if the inequality is true.
0.50x +0.80y ≥ 20
0.50(20) + 0.80(32) ≥ 20
10 + 25.6 ≥ 20
35.6 ≥ 20 . . . . . . true; (20, 32) is a solution
Multiply the whole by the % to equal tip amount.
=23.95 * 12%
=23.95 * 0.12
=$2.87 tip
Hope this helps! :)
100 – 2x < 20
−2x + 100 < 20
−2x + 100 − 100 < 20 − 100
−2x < −80
−2x/2 < −80/2
x > 40
Step-by-step explanation:
example: the distance form the line y=x till Y and Y' must be the same