Answer:
one solution
Step-by-step explanation:
* Lets start to solve the question
- The 1st equation x - y = -4
- The 2nd equation 3x + y = 8
- We will use the elimination method to solve this system of equation
∵ x - y = -4 ⇒ (1)
∵ 3x + y = 8 ⇒ (2)
- Add the two equation (1) and (2) to eliminate y
∴ x + 3x = -4 + 8
∴ 4x = 4
- Divide both sides by 4
∴ x = 1
- Substitute the value of x in equation (1) or equation (2) to find
the value of y
- We will use equation (1)
∴ 1 - y = -4
Subtract 1 from both sides
∴ -y = -5
- Divide both sides by -1
∴ y = 5
∴ The solution is (1 , 5)
* The system has one solution
Answer:
x^4 y^12 z^16
Step-by-step explanation:
This is the answer when its simplified.
Answer:
12x + 2
Step-by-step explanation:
It would have to be 5 60/100
(5 wholes and sixty out of a hundred)
9514 1404 393
Answer:
A, C
Step-by-step explanation:
The given ratio can be reduced by removing a factor of 2 from each element.
8 : 6 = 4 : 3 . . . . matches A
It can be put in other forms by multiplying each element by the same factor. Using a factor of 2 on the original ratio values, we get ...
8 : 6 = 16 : 12 . . matches C
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Any ratio that doesn't reduce to the integer ratio 4 : 3 is not equivalent. The ratio with elements reversed (3:4) is not equivalent.
