Answer:
Step-by-step explanation:
Answer:
Part a) In Geneva the watch is cheaper
Part b) The watch in Geneva is
cheaper than the same watch in Manchester
Step-by-step explanation:
<u><em>The question is</em></u>
a) In which city is the watch cheaper?
b) By how much is it cheaper (in £)?
Part a)
Transform
in order to work with the same currency and make the comparison
If 

Now we can make the comparisons:
In Geneva the watch costs
and
in Manchester it costs


therefore
In Geneva the watch is cheaper
Part b)
If we want to know by how much is cheaper, subtract from the expensive price the value of the cheaper price
Therefore
The watch in Geneva is
cheaper than the same watch in Manchester
2m + 2p = 16 Subtract 2m from both sides
2p = 16 - 2m Divide both sides by 2
p = 8 - m
The value of x is 21√2/2
The correct option is (A)
<h3>What is Trigonometry?</h3>
Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles.
In triangle having angle 60.
sin 60 = P/ 7√3
√3/2= P/7√3
2P= 21
P= 21/2
Now again
cos 45= 21/2/x
1/√2 = 10.5/x
x= 21√2/2
Learn more about trigonometry here:
brainly.com/question/26719838
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That's true! you can use the speed triangle to help you remember