Here’s the e-maths homework
For those w/o the textbook !
Exercise 1E [A2]
Q1 d~h, Q2 c,d, Q3b, Q5-10 .
Slove each of the following pairs
of inequalities simultaneously .
1d) 2x < -4, 6x+32 ≥ 8
1e) 3x <> 6
1f) 4x ≥ 10, 3x-9 ≥ 6
1g) 5x ≤ 10, 2x+7 <>
1h) 6x ≤ 12, x-2 > 2
List the integral values of x that satisfy
each of the following :
2c) 4 ≤ 2x+5 ≤ 9
2d) -14 <> 9
Find the integer values of x for which
3b) 2x-3 <>
Q5) List the integer values of x for which
7x > 65 and 25-2x ≥ 1
6a) Solve the inequality : 10x-4 ≤ 5
b) List the integral values of y for which
-8 ≤ y< -3 and 3 <>
7) Find the odd integer n for which
n-2 ≤ 6 and 4n-1 > 19
8a) Find the integer x such that
x+1 <>
b) Solve the inequality
20-3y <>
9) Find the integer values of x which satisfy all
the three conditions : 3x-2 ≥ 1, x<4>
10) Find the possible integer values of x for which
3 <>
Exercise 1E [A3]
Q4- 7
4) Julia scored 55, 89 and x marks for three English tests.
To score distinction, her average mark must be at least
75 marks.
a) Form an inequality in x
b) Solve the inequality
c) Hence, state the minimum mark that Julia must score
For the last English test in order to score a distinction.
5) Jane and Mary intend to start up a push-cart business
at a shopping centre. They decided that the start-up
capital should not be more than $50 000 and that Mary
will put in $8 000 more than Jane. Find the maximum amount
that Jane can invest.
6) The west zone mathematics competition consists of 40
multiple-choice questions. 5 marks is awarded for a correct
answer while 1 mark is deducted for a wrong answer. No marks are awarded or deducted for questions not
attempted.
A student skipped 6 questions and scored at least 100 marks.
Find the maximum number of wrong answers he gave.
7) This question has a diagram. You will need the textbook !
Do it on Monday morning ! =)
[SCY] =D
