-(5y) - y = 18
-6y = 18
y = -3
x = 5(-3)
x = -15
(-15, -3)
5x + 4(-7x - 3) = -35
5x -28x -12 = -35
-23x = -23
x = 1
y = -7(1) - 3
y = -10
(1,-10)
Answer:
The first set of ordered pairs is a function, because no two ordered pairs have the same first coordinates with different second coordinates. The second example is not a function, because it contains the ordered pairs (1,2) and (1,5). These have the same first coordinate and different second coordinates.
Depends are you finding x or other variables
Answer:
j = 17.32 sq rt 3 or 30
Step-by-step explanation:
sin 60 = j/20sq rt 3
0.8660 = j/20sq rt 3
j = 17.32 sq rt 3
[<Answer>] (1):
<em>Heyy there, it's Avery. And I'm here to help! :)
</em>----------------------------------------------------------------------------------------------------------[<The Explanation>]:
Let x= number of watches sold
<em>Ethan= x(14) + (20)(1.50)</em>
<em>Roy = x(13.50) + (20)(1.80)</em>
Since they collected the same amount of money:
<em>14x + (20)(1.50) = 13.50x + (20)(1.80)</em>
Combine like terms:
<em>14x - 13.50x = (20)(1.80) - (20)(1.50)</em>
<em>0.50x = 36 - 30</em>
<em>0.50x = 6</em>
<em>x = 6/0.50</em>
<em>x= 12</em>
Ethan sold 12 watches. And also Roy.
Andddd...We're done! :D
----------------------------------------------------------------------------------------------------------
[<Ending>] <3
<em>Hope this helps and if it's wrong, you can't sue me! :D</em>
Bye! Hope this works for you :)
Have a nice day! - Avery <3
