Inequalities
7x < 56
x < 8
–7 s + s
-6s
-3 + (-4)
-7
13 = 5m – 2
3
-5x > 80
X < -16
–5 t + (–4) t
-9t
-42 - (-6)
-36
7k − 14 = 42
8
-20x + 20 < 400
x > -19
–8 x – (–4) x
-4x
-3 x (-5)
15
–48 = 6(v + 2)
-6
Kate's Cupcakes sells cupcakes in boxes of 4. Depending on the type of cupcake, a box can cost at most $20. Let x represent how much each cupcake costs. Which inequality describes the problem?
4x <_ 20
2 – 7(3n – 9)
-21n - 61
or -61-21n
-56 ÷ 8
-7
𝑥 + 3/ 2 = 5
7
Ryan is a wrestler trying to make weight. He currently weighs 200 lbs. If he cuts 2 lbs per week, how many weeks will it take him to weigh less than 175 lbs.?
w < 12.5 weeks
or 13 weeks
3(–2y + 9 + 10y2) + 6y
27 + 30y2
12 + (-7) - (-28)
33