Answer: 29/139
Explanation:
Total student: 139 (66 boys/73 girls)
Football: 56 student (28 boy/28 girl)
Tennis: 54 student (27 boy/ 27 girl)
Running: 29 student (18 girls/11 boys)
The probability that a student chose running is 29/139
6 7/8 - 4 3/8 = 2 4/8 = 2 1/2
Answer:
x∈ (-1, ∞)
Step-by-step explanation:
<u>Solution of the inequality:</u>
- −2(3x − 1) < 8 ⇒ Divide both sides by -2, this will change inequality
sign to opposite
- 3x - 1 > -4 ⇒ add 1 to both sides
- 3x > -3 ⇒ divide both sides by 3
- x > -1 ⇒ answer
- x∈ (-1, ∞) ⇒ answer as set
50 + 20h = 100 + 10h
20h - 10h = 100 - 50
10h = 50
h = 50/10
h = 5 <== they will charge the same at 5 hrs