X is 7 and y is 2 I am pretty sure
Answer:
1.5
Step-by-step explanation:
15/10=1.5
21/14=1.5
Check:
10x1.5=15
Hope this helps!
Answer:
28.5
Step-by-step explanation:
i think itś 28.5 because 285 is after an increase of 10% which would mean 28.5 was the increase
5x^2 -15x-140
5(x² -(3x) -28)
5(x² +(4x-7x)-28)
5(x(x+4) -7(x+4)
5(x-7)*(x-4)
There is the equal values method, so you can do:
x-4 = 4x-10 (remove x from both sides)
-4 = 3x -10 (add ten to both sides)
6 = 3x (devide by 3x)
2 = x
Check: (by plugging it into the equation)
y = 2-4 and y = 8-10
y = -2 and y = -2
that's matches so it is correct...
YOUR ANSWER IS:
(2, -2)
I hoped I helped sort things out, and have a great day!
