Answer:
(- 1, - 2 )
Step-by-step explanation:
Given the 2 equations
x - 3y = 5 → (1)
5x - 2y = - 1 → (2)
Rearrange (1) expressing x in terms of y by adding 3y to both sides
x = 5 + 3y → (3)
Substitute x = 5 + 3y in (2)
5(5 + 3y) - 2y = - 1 ← distribute left side
25 + 15y - 2y = - 1
25 + 13y = - 1 ( subtract 25 from both sides )
13y = - 26 ( divide both sides by 13 )
y = - 2
Substitute y = - 2 in (3) for corresponding value of x
x = 5 + (3 × - 2) = 5 - 6 = - 1
Solution is (- 1, - 2 )
I have no idea how to do this problem i dont know what a is
Answer:
42, 56, 70
Step-by-step explanation:
A right triangle must always have a ratio of side lengths that allow it to connect fully.
Answer:
23/40 is a rational number
Step-by-step explanation:
an irrational number cannot be written as a fraction - with a finite end. An irrational number would be a repeating decimal
B because you subtract the two numbers
