Mr Daniels Maths
Proportion Inverse

Set 1

Set 2

Set 3

Q1) If y is inversely proportional to x. If y= 12 and x = 6.
What is the equation linking x to y? [ y =\(72 \over x \)]

Q1) If y is inversely proportional to x. If y= 15 and x = 25.
What is the value of y when x =46? [ y = 8.1521739130435]

Q1) If y is inversely proportional to \(x^2 \). If y= 0.00034686090877558 and x= 93.
What is the value of y when x =80? [ y = 0.00046875]

Q2) If y is inversely proportional to x. If y= 20 and x = 7.
What is the equation linking x to y? [ y =\(140 \over x \)]

Q2) If y is inversely proportional to x. If y= 16 and x = 61.
What is the value of y when x =85? [ y = 11.482352941176]

Q2) If y is inversely proportional to \(x^2 \). If y= 0.0016659725114536 and x= 98.
What is the value of y when x =43? [ y = 0.0086533261222282]

Q3) If y is inversely proportional to x. If y= 4 and x = 3.
What is the equation linking x to y? [ y =\(12 \over x \)]

Q3) If y is inversely proportional to x. If y= 14 and x = 47.
What is the value of y when x =80? [ y = 8.225]

Q3) If y is inversely proportional to \(x^3 \). If y= 1.4565316340464E-5 and x= 65.
What is the value of y when x =84? [ y = 6.7487312385272E-6]

Q4) If y is inversely proportional to x. If y= 20 and x = 2.
What is the equation linking x to y? [ y =\(40 \over x \)]

Q4) If y is inversely proportional to x. If y= 19 and x = 37.
What is the value of y when x =34? [ y = 20.676470588235]

Q4) If y is inversely proportional to \(x^2 \). If y= 0.0031600114909509 and x= 59.
What is the value of y when x =36? [ y = 0.0084876543209877]

Q5) If y is inversely proportional to x. If y= 14 and x = 7.
What is the equation linking x to y? [ y =\(98 \over x \)]

Q5) If y is inversely proportional to x. If y= 11 and x = 49.
What is the value of y when x =21? [ y = 25.666666666667]

Q5) If y is inversely proportional to \(x^2 \). If y= 0.0015625 and x= 80.
What is the value of y when x =40? [ y = 0.00625]

Q6) If y is inversely proportional to x. If y= 3 and x = 6.
What is the equation linking x to y? [ y =\(18 \over x \)]

Q6) If y is inversely proportional to x. If y= 7 and x = 100.
What is the value of y when x =5? [ y = 140]

Q6) If y is inversely proportional to \(x^2 \). If y= 0.001220703125 and x= 64.
What is the value of y when x =71? [ y = 0.00099186669311645]

Q7) If y is inversely proportional to x. If y= 10 and x = 9.
What is the equation linking x to y? [ y =\(90 \over x \)]

Q7) If y is inversely proportional to x. If y= 14 and x = 26.
What is the value of y when x =42? [ y = 8.6666666666667]

Q7) If y is inversely proportional to \(x^2 \). If y= 0.0034626038781163 and x= 76.
What is the value of y when x =44? [ y = 0.010330578512397]

Q8) If y is inversely proportional to x. If y= 18 and x = 5.
What is the equation linking x to y? [ y =\(90 \over x \)]

Q8) If y is inversely proportional to x. If y= 17 and x = 20.
What is the value of y when x =27? [ y = 12.592592592593]

Q8) If y is inversely proportional to \(x^3 \). If y= 1.8965255651646E-5 and x= 78.
What is the value of y when x =17? [ y = 0.0018318746183595]

Q9) If y is inversely proportional to x. If y= 20 and x = 9.
What is the equation linking x to y? [ y =\(180 \over x \)]

Q9) If y is inversely proportional to x. If y= 20 and x = 33.
What is the value of y when x =68? [ y = 9.7058823529412]

Q9) If y is inversely proportional to \(x^2 \). If y= 0.0061728395061728 and x= 18.
What is the value of y when x =7? [ y = 0.040816326530612]

Q10) If y is inversely proportional to x. If y= 12 and x = 3.
What is the equation linking x to y? [ y =\(36 \over x \)]

Q10) If y is inversely proportional to x. If y= 7 and x = 78.
What is the value of y when x =20? [ y = 27.3]

Q10) If y is inversely proportional to \(x^2 \). If y= 0.0041649312786339 and x= 49.
What is the value of y when x =27? [ y = 0.013717421124829]