You multiply each side by 5/2 because it's the reciprocal of 2/5 so 3 times 5/2 = 7.5 so y=7.5
To work out how much something was before the discount, you have to divide the price (which is £90) by 75 (as this is the percentage that you paid). It's gives you £1.20. Therefore, 1% is £1.20. To find the original cost, which is 100%, you have to multiply it by 100. Multiplying £1.20 by 100 gives you £120.
Therefore, the cost of the TV before the 25% reeducation was £120.
Hope this helps :)
Answer:
Step-by-step explana88876776666666677tion:
Answer:
False
Step-by-step explanation:
<em>Image (graph) of y = Sinx is attached.</em>
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First, lets understand domain and range.
Domain is the set of all x-values for which a function is defined (x axis).
Range is the set of all y-values for which a function is defined (y axis).
We are said that range of y = Sin x is the set of all real numbers.
If we look at the graph and look at the y-values for which the function is defined, we see that the Sin Curve oscillates between y = -1 and y = 1.
So the range would be:

It is not defined for other values, certainly not for ALL REAL NUMBERS!
So, this statement is false.