(Total for question 9 is 3 m 10
Lottie buys a pack of 50 cans of lemonade.
She pays £17 for the cans.
Lottie sells 32 of the cans for 50p each.
She sells the remaining cans for 20p each.
Work out Lottie's percentage profit.
Give your answer correct to three significant figures.
(Total for question 10 is 3

hi there!

question 1 answer: p/q can be terminating when q = 5^m * 2^n

question 2 answer: -1 and -1

question 3 answer: -4

question 4 answer: 5/12

hope this : )

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.