Answer:x=−3
x=−2
Step-by-step explanation:
To determine what percentage of 642 the number 321 is, we can follow the equation below.
(Smaller Number / Bigger Number)*100
We can plug the numbers into the equation to get our answer.
(321/642)*100 = 0.5 *(100) = 50%
So 321 is 50% of 642
Answer: No it is in correct the answer is actually -x3 + 2x + y
Step-by-step explanation:
Answer:
(1, 2 )
Step-by-step explanation:
Given the 2 equations
- 2x - y = - 4 → (1)
x + 2y = 5 → (2)
Multiplying (2) by 2 and adding result to (1) will eliminate x- term
2x + 4y = 10 → (3)
Add (1) and (3) term by term to eliminate x
0 + 3y = 6
3y = 6 ( divide both sides by 3 )
y = 2
Substitute y = 2 into either of the 2 equations and solve for x
Substituting into (2)
x + 2(2) = 5
x + 4 = 5 ( subtract 4 from both sides )
x = 1
solution is (1, 2 )
