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Solve the simultaneous equations: y=5-x and y=x+1.

Since y is equal to both 5-x and to x+1, we know that 5-x is equal to x+1. We can write 5-x=x+1. Take 1 away from each side: 4-x=x. Then add x to each side: 4=2x. Divide both sides by 2: 2=x. Now we have x, ...
CW
Answered by Charlotte W. Maths tutor
19545 Views

Work out 51% of 400? (No calculator)

Finding 51% of 400 is the same as finding 50% of 400, and 1% of 400, and adding them together. Finding 50% of a number is the same as finding half of the number, since half of 100% is 50%. Half of 400 is 200...
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Answered by Charlotte W. Maths tutor
26508 Views

what role did women play in medieval knighthood?

In order to accurately explore the role of women in medieval society, and in relation to knighthood, it is most effective to look at a combination of primary and secondary sources. Starting with the rise of ...
RM
Answered by Rebecca M. History tutor
5932 Views

How do I know when past participles should agree?

In French the past participles of direct verbs have to agree with the gender or number of their object. For example, ‘I saw him’ translates as ‘je l’ai vu’, but ‘I saw her’ as ‘je l’ai vue’, and 'I saw them'...
MD
Answered by Marcus D. French tutor
3013 Views

What is a reflex action?

A reflex action is the body's rapid, involuntary response to external stimuli, often used in order to protect it from immediate harm. First, a receptor detects a stimulus, such as a heat source which could b...
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Answered by Nat A. Biology tutor
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