a) 2 (5x-3) = 24
= 10x -6 = 24
= 10x = 24+6
= 10x = 30
= x= 30/10
b) 5 (2x+1) = 50
= 10x+5=50
= 10x = 50-5
= 10x = 45
= x = 45/10
c) (3x+4)/2=9.5
= (3x+4)/2=95/10
( On cross multiplication )
= 10(3x+4) = 2×95
= 30x+40=190
= 30x=190-40
= 30x=150
= x=150/30
(on simplification)
d) (7+2x)/3=5
(On cross multiplication)
= 1(7+2x)=5(3)
= 7+2x=15
= 2x=15-7
= 2x=8
= x=8/2
(on dividing)
Answer:
The inequality that represents p are p 125 or p
85.
Step-by-step explanation:
We are given that in order to be invited to tutoring or extension activities, a student's performance must be at least 20 points higher or lower than an average score. The average score is 105.
Let p = the scores for students who are eligible for tutoring or extension activities.
<u>The first condition</u> states that a student's performance must be at least 20 points higher than an average score, that means;
p (105 + 20)
p 125
Similarly, <u>the second condition</u> states that a student's performance must be at least 20 points lower than an average score, that means;
p (105 - 20)
p 85
So, the inequality that represents p are p 125 or p
85.