[" The solution of "(15)/(4)-7x=9],[[" is "-(3)/(4)," (ii) "-8," (iii) "-2," (iv) "]]

Find the additive inverse of : (i) (5)/(9) " " (ii) (-15)/(8)" " (iii) (9)/(-11)" " (iv) (-6)/(-7)

Find the value of : (i) ((5)/(8))^(-1)" "(ii)((-4)/(9))^(-1)" "(iii) (-7)^(-1) " " (iv)((1)/(-3))^(-1)

Draw the number line and represent the following rational numbers on it : (i) (3)/(4) (ii) (-5)/(8) (iii) (-7)/(3)( iv )(7)/(8)

Find the sum : (i) 5/4 + ((-11)/(4)) , (ii) 5/3 + 3/5 , (iii) (-9)/(10) + 22/15 (iv) (-3)/(-11) + 5/9 , (v) (-8)/(19) + ((-2))/(57) , (vi) (-2)/(3) + 0 (vii) -2'1/3 + 4'3/5

Convert the following fractions into percentages: (i) (1)/(2) (ii) (3)/(4) (iii) (4)/(5) (iv) (7)/(8)

Find the value of (i) |-9| " " (ii) |-36| " " (iii) |0| " " (iv) |15| (v) -|-3| " " (vi) 7 + |-3| " " (vii) |7 - 4| " " (viii) 8-|-7|

The number of solutions of the equations 2x - 3y = 5, x+2y=7 is (i) 1 (ii)2 (iii)4 (iv) 0

If the line through (3,y) and (2,7) is parallel to the line through (-1,4) and (0,6), then the value of y is (i) -9 (ii) -8 (iii) 8 (iv) 9

Draw the number line and represent the following rational numbers on it : (i) 3/4 (ii) (-5)/8 (iii) (-7)/3 (iv) 7/8

The length of latus rectum of the ellipse 3x^(2) + y^(2) = 12 is (i) 4 (ii) 3 (iii) 8 (iv) (4)/(sqrt(3))