Answer:
The Blue box is your answer
Step-by-step explanation:
Multiply 4, 8, and 7 and you get 224. The problem states that it should not be over 250, and 224 is not over 250. So the blue box is your best go.
Answer:
Which of the following is a common sign that a chemical change has occurred?
Step-by-step explanation:
It is option c. Because when we substitute x for -1 we get the remainder as 1.
To find the equation, set both equal to each other
SO
150+78X=151+77X
Subtract 150 from both sides
78X = 1 + 77x
Subtract 77x from both sides
X=1
The duration would be one hour
Answer:
D
Step-by-step explanation:
Given the 2 equations
2x - 3y = 14 → (1)
5x + 3y = 21 → (2)
Adding the 2 equations term by term will eliminate the y - term
(5x + 2x) + (- 3y + 3y) = (14 + 21)
7x = 35 ( divide both sides by 7 )
x = 5 → D