By adding 3 to both sides you get
-2 = s or s = - 2
1) Considering that there are 150 students
A) Adding 24+39 we got 63 students
150------------100%
63 ----------- x
x=6300/150
x= 42% of the students passed Math.
B) Adding the number of those students who live off-campus 39 +21
150 ----------------100%
60------------------ y
y=6000/150
y=40%
C) 60 students live off-campus 39 succeded. So we can write
60 --------- 100%
39 --------- z
z= 3900/60
z=65% passed math (off-campus)
D) Comparing that 65% of students who live off-campus passed math and that among those who live on campus and that 58% of all students failed
Then we can state:
A)
Answer:
The length of the rectangle is 12 inches.
Step-by-step explanation:
Let the length and width of the rectangle be represented as l and w respectively.
Thus,
l = 2w+ 4
area = 48 square inches
So that,
Area of a rectangle = l x w
48 = (2w + 4) x w
= 2 + 4w
2 + 4w - 48 = 0
Divide through by 2 to have;
+ 2w - 24 = 0
( - 4w) (6w - 24)
w(w - 4) + 6(w - 4)
Thus,
(w - 4) or (w + 6)
w - 4 = 0 or w + 6 = 0
w = 4 or w = -6\
Therefore, the width of the rectangle is 4 inches. Then,
length, l = 2w + 4
= 2 (4) + 4
= 12 inches
The length of the rectangle is 12 inches.
Answer: 8x+2
Step-by-step explanation:
Distribute 2 to 4x and 1 by multiplying them.