divide the price paid by the original price:
40 / 80 = 0.5
Multiply that by 100 for the percent:
0.5 x 100 = 50%
They paid 50% of the original price.
The measures of vertical angles are identical.
∠A = ∠B
x+16 = 3x-14 . . . . substitute the given measures
30 = 2x . . . . . . . . add 14-x
15 = x . . . . . . . . . .divide by 2
∠A = ∠B = 15+16 = 31
The measure of ∠A is 31°.
(a) both a relation and a function
<u>Step-by-step explanation:</u>
In math, the relation is between the x-values and y-values of ordered pairs. The set of all x-values is called the domain, and the set of all y-values is called the range. We must have a value of y for a value of x and so it's a relation.
Here , y = x/3 for every value of x we have a value of y as at x=1 we have y=1/3. So, it is a relation. Now, Relation is function when it passes vertical line test i.e. when we draw graph of y if we sketch many distinct vertical lines they all must cut graph at only one point and so its function. Basically, for every value of x we must have only one value of y. Y = x/3 follows the above rule and so its also a function! ∴ y=x/3 is both a relation & a function.