Solution:
we have been given that
A police officer counted 22 revolutions of a wheel to measure the length of a skid mark. the diameter of the wheel was 15 in it mean radius is 15/2 in.
we have been asked to find how long was the skid mark in length?
As wse know that length of one revolution
So the lngth of 22 revolutions
Answer:
the best value is two 50 ml bottles
Step-by-step explanation:
Okay focus with me , if you buy a bottle of 50 ml you will get a second for half price so we can say that --> 2 bottles of 50 ml =
We get 100 ml with £67.5 just , but when you buy 80ml you must pay £55 Hum !
then you can dived the volume of bottle with price ...
then :
so the best value is two 50 ml bottles