"The petrol consumption of your boat is 15 litres per 100kms. Let d be the distance you travel in kilometres and p the price of petrol in rand per litre. Anexpression for the number of litres of petrol you need to travel d kilometres is"
I think the answer will be
<span>
P=15*(100d)</span>
Answer:
1.3
Step-by-step explanation:
Answer:
1180
Step-by-step explanation:
(42×28)+4 =x
x= 1180
Suppose the one's digit is x, the ten's digit is y. the original number is 10y+x, the reversed number is 10x+y
x+y=13
(10x+y)=(10y+x)-9 =>9y-9x=9 =>y-x=1
Add the two equation to solve: 2y=14 =>y=7
x=13-7=6
the original number is 76.