Hi , I am in class 8.
Answer these questions step by step don't directly answer them.
Q1. Find -1/6 × 4/7 + 1/2 - 3/7 × 1/6 by using appropriate properties. ( also mention the properties.)
Q2. Represent :
-2/7,4/9,-7/4,3/8 on different number line.
Q3. Write all the properties of parallelogram.
Q4. BENT is a rectangle. It's diagonal meets at O. Find x, if OR = 2x+4 and OT = 3x+1.
(answer all questions correctly for brainlist and 5 star rating. )
Answers
Answer:
Q1 NOT CLEAR
Q2.
Representing fractions on number line shows the intervals between two integers which will help us to increase the basic concept on formation of fractional numbers.
1. Represent the fractions: 2/5, 11/5, -8/5 and -3/5 on a number line.
Since, the denominator of each given fraction is 5; divide the space between every pair of two consecutive integers (on the number line) in 5 equal parts. Each part so obtained will represent the fraction 1/5 and the number line obtained will be of the form:
Representing Fractions on Number Line
To mark 2/5; move two parts on the right-side of zero.
To mark 11/5; move eleven parts on the right-side of zero.
To mark -8/5; move eight parts on the left-side of zero.
To mark -3/5; move three parts on the left-side of zero.
The following diagram shows markings of fractions 2/5, 11/5, -8/5 and -3/5 on a number line.
Fractions on Number Line
2. Represent the following fractions: 1/4, 7/4, -3/4 and -9/4 on a number line.
Since, the denominator of each given fraction is 4; divide the space between every pairs of two consecutive integers (on the number line) in 4 equal parts. Each part so obtained will represent the fraction 1/4 and the number line obtained will be of the form:
Fractions on the Number Line
To mark 1/4; move one part on the right-side of zero.
To mark 7/4; move seven parts on the right-side of zero.
To mark -3/4; move three parts on the left-side of zero.
To mark -9/4; move nine parts on the left-side of zero.
The following diagram shows markings of fractions 1/4, 7/4, -3/4 and -9/4 on a number line.
Fractions and Number Line
3. Draw a number line to represent fractions: 3/8, 5/8, -1 3/8, -7/8
Since, the denominator of each given fraction is 8; divide the space between every pairs of two consecutive integers (on the number line) in 8 equal parts. Each part so obtained will represent the fraction 1/8 and the number line obtained will be of the form:
Fraction Number Line
To mark 3/8; move three parts on the right-side of zero.
To mark 5/8; move five parts on the right-side of zero.
To mark -1 3/8 i.e. -11/8; move eleven parts on the left-side of zero.
To mark -7/8; move seven parts on the left-side of zero.
The following diagram shows markings of fractions 3/8, 5/8, -1 3/8, -7/8 on a number line.
Fractions on a Single Number Line
So, in representing fractions on number line we have learnt how to draw any fractional points on the number line.
Q3
1. Opposite sides are parallel and congruent.
2. Opposite angles are congruent.
3. Adjacent angles are supplementary.
4. Diagonals bisect each other and each diagonal divides the parallelogram into two congruent triangles.
Q4.or = 2x + 4
ot = 3x + 1
or=ot
2x + 4 = 3x + 1
4 - 1 = 3x - 2x
3 = x
Answer:
Hey why you change your profile