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There are 9 counters in a bag. 7 of the counters are green. 2 of the counters are blue. Two counters are chosen at random, what is the probability one counter of each colour is chosen.

There are two methods to pick one counter of each. Either pick the (1)green counter first and then blue, or a (2)blue counter first and then green. We must calculate the probability of both of these scena...

Answered by Ummar B. • Maths tutor

27666 Views

How do expressions of time work in Latin?

The way time is expressed in Latin depends on whether you are trying to describe the time when an event occurred, or how long an event occurred for. You should always start by asking yoursel...

Answered by Ellen R. • Latin tutor

2411 Views

What is the most effective way to structure an essay?

Essays are an examination of your knowledge, understanding and response to a particular topic, subject or text. In planning an essay that pertains to a specified question, relate your opening hypothesis d...

Answered by James G. • English tutor

1625 Views

What's the difference between "estar" and "ser"? (Both of them mean "to be")

“Ser” is used to describe permanent or long lasting qualities. It is also used to talk about date and time.Hoy es lunes, son las 12.30 = Today is Monday, it’s 12.20Examples:Laura e...

Answered by Sofia G. • Spanish tutor

2096 Views

Explain why the number of organisms decreases along the food chain.

Not all energy is transferred between different levels of the food chain due to not all the organisms being consumed, often not the entire organism is eaten either, leaving behind energy in the hair/fur, ...

Answered by James G. • Biology tutor

13570 Views