Question

the coach of a cricket team buys 3 bats and 6 balls for rs.3900. later she buys another bat and 3 more balls of the same kind for rs.1300 . represent this situation algebraically​

Answer 1

Answer:

The process of deriving large crystals of pure substances from their solutions is known as crystallisation. It is a physical change. Crystals of salt are obtained by the evaporation of sea water. ... This mixture when filtered and allowed to cool produces crystals of copper sulphate.

Answer 2

Answer:

it is claimed by a racer bike manufacturing company that the race bikes are driven on a average of more than 12,000 kilometres on yearly basis .To the test the company's claim 100 randomly drawn racer bike owners are asked to maintain a record of total distance they travel. Will you favour this companys claim if the randomly selected sample exibit an average of 13,200 kilometres and a standard deviation of 3900 kilometres? Use P value to conclude your answervwith 5% level of significance