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In an office there are twice as many females as males. 1/4 of the females wear glasses. 3/8 of the males wear glasses. 84 people in the office wear glasses. Work out the number of people in the office.

office that is females with glasses=(2/3) (1/4)=1/6 office that is males wearing glasses=(1/3) (3/8)=1/8 (1/6)/(1/8) = 8/6=4/3 so there is a ratio of 4:3 women to men wearing glasses 84*(4/7)=12 4=48 women w...
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Answered by William J. • Maths tutor
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What is the difference between a longitudinal and a transverse wave?

Waves that go up and down in a curvy shape like you would draw on a piece of paper are called transverse waves. Scientifically, these are when the particles move in a direction that is perpendicular (90) fro...
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Answered by Sarah F. • Physics tutor
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How do I plan an answer to a close reading question in my exam?

The first thing I tell students is when presented with a question, take time to plan. Do not start writing immediately - most of what you will produce won’t be much good. In a lesson, I provide students with...
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4284 Views

What is a pathogen?

A microorganism that causes disease
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Answered by Emma S. • Biology tutor
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What is the difference between qui, que, dont and lequel?

These are the basic relative pronouns which are translated as that or who. Although in English they can be missed out, in French they must be used. e.g. the house that I like- the that here is the relative p...
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Answered by Josephine E. • French tutor
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