If nathan begins his journey after 9 a. m. he is allowed a discount
of 30% on the cost of his rail ticket. he pays £22.75 for a ticket to
london, leaving on the 9.15 a. m.
a) express the discounted price as a percentage of the full price.
b) calculate the cost of the ticket before deducting the discount.

a) The discounted prince is 70% of the full price.

b) 32.5 €

Step-by-step explanation:

a) If the full price is 100%, then you subtract 30% which is the discount and you get 70 %.

b) 22.75 is 70% of 32.5

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

i dont know sorry

step-by-step explanation: