Add
2
y
2
y
to both sides of the equation then divide by
14
14
.
x
=
1
14
+
y
7
Move all terms that don't contain
x
x
to the right side and solve.
x
=
−
1
+
y
2
Answer:
x≤−8
Step-by-step explanation:
2x+3≤x−5
Subtract x from each side
2x-x+3≤x-x−5
x+3≤−5
Subtract 3 from each side
x+3-3≤−5-3
x≤−8
<u><em>Explanation</em></u>
5 students got 6 mark each, 4 students got 7 marks each, 7 students got 8 marks each, 10 students got 9 marks each and 4 students got 10 marks each.
(a) <u>Range is the difference of highest mark and lowest mark.</u> Here, the highest mark is 10 and lowest mark is 6.
So, the range of mark
(b) Total number of students in the group
(c) Mean is the <u>simple average.</u> So, for finding the Mean, we will divide the total marks obtained by all students by the total number of students.
Total marks obtained by all students
So, the Mean mark of the group
Answer:
a
Step-by-step explanation:
A mixed number is whole numbers and a fraction so
because there are 102 elevens you divide
102/11 = 9 and some
9*11=99
102- 99= 3
there are 3 groups of eleven left over
99 3/11 <- answer