Answer:
The solution would be (0, 5)
Step-by-step explanation:
In order to solve this system by substitution, simply take the value of y in the first equation and use it in place of y in the second. This will allow you to solve for x.
4x + 4y = 20
4x + 4(x + 5) = 20
4x + 4x + 20 = 20
8x + 20 = 20
8x = 0
x = 0
Now that we have the value of x, we can find the value of y.
y = x + 5
y = 0 + 5
y = 5
Answer:
The correct option is:
The student should have switched the direction of the inequality sign to get –5> x for a final answer
Step-by-step explanation:
The students has made a mistake in the 3rd step.
We know that when we multiply or divide any negative number on both sides of the inequality, the sign of inequality reverse its direction.
In step 3 the student divided 25 by -5 but did not switch direction of the inequality sign.
Therefore the correct option is: The student should have switched the direction of the inequality sign to get –5> x for a final answer....
Answer:
9
Step-by-step explanation:
The list that shows all the factors pairs of 30 is A
