Adiscount voucher offering 15% off is used to pay a bill. after using the voucher, the bill is reduced to £36.72 how much was the bill before applying the voucher discount?

£43.20

Step-by-step explanation:

A discount voucher offering 15% off is used to pay a bill.

Let the original bill be x

After using the voucher of 15% off, the bill is reduced to £36.72

100 - 15 = 85

85% of the bill = £36.72

0.85x = £36.72

x =

x = 43.20

The bill was £43.20 before applying the voucher discount.

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%

the ratio would be 4: 3, the four being for jackson, and the three being not for him.