Step-by-step explanation:
Given:
Sleep hour = 7.5 hr
Assume;
School hour = 6 hr
Homework = 2.5 hr
Eating and playing = 5 hr
Free time = 3 hr
Find:
Percent of each school day
Computation:
Sleep hour = 7.5 hr = [7.5/24]100 = 31.25%
School hour = 6 hr = [6/24]100 = 25%
Homework = 2.5 hr = [2.5/24]100 = 10.41%
Eating and playing = 5 hr = [5/24]100 = 20.83%
Free time = 3 hr = [6/24]100 = 12.5%
Answer:
1030
volume = 148 × 5.5 cube
= 24623.5 cubic cm
2x+2≤x+4≤3x+4
means : 2x+2≤x+4 ...(1) and x+4≤3x+4
(1) : 2x-x≤4-2 so : x≤2....(*)
(2) :3x+4 ≥x+4 .... 3x-x ≥ 0 so: x≥0 ....(**)
by (*) and (**) : 0≤x≤2 so : A=0 and B = 2
