Answer:
D
Explanation:
Double the first equation. Write the second below it. Rearrange the second.
2x - 20 = - 4y
<u>-2x -16= +4y</u> Add.
- 36 = 0
There is no solution to this pair of equations.
Answer:
top ? = 16
Explanation:
top question mark:
notice how 5 X 6 X 4 = 10 X 12 and how 3 X 2 X 10 = 6 X 10
the outside numbers multiplied together is equivalent to ten times the inside number
8 X 20 X 1 = ? X 10
8 X 20 X 1/10 = 16
? = 16
The value of x for the given equation (x + 50)/2 = 13x is 2.
According to the given question.
We have an equation (x + 50)/2 = 13x, which represents when two tutoring services with different rate plans charge the same fees for a session of x hours.
So, we have to solve the given equation (x + 50)/2 = 13x for x.
Therefore,
x + 50 = 2(13x)
⇒ x + 50 = 26x
⇒ 26x - x = 50
⇒ 25x = 50
⇒ x = 50/25
⇒ x = 2
Hence, the value of x for the given equation (x + 50)/2 = 13x is 2.
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Answer:
Therefore one drink is 9cent and one drink 8cents
I don't know if i understand but i believe your answer is (D)V
