Answer:
x =
Step-by-step explanation:
2x – 4 – (x + 2) = 6x is the given equation
Now simplifying both sides, we get
2x - 4 - x - 2 = 6x
taking like terms on each side of the equality, we get
2x - x - 6x = 4 + 2
or, -5x = 6
or x =
hence, the value of x =
9514 1404 393
Answer:
40 minutes
Step-by-step explanation:
The lines are graphed. The point of intersection (A) is where the two sign makers will have made the same number of signs in the same number of minutes. The answer to the question is the x-coordinate of that point, 40 minutes.
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The equation you want to solve is the one that sets Kiran's y-value equal to Lin's y-value
y = y
1/2x +5 = 1/4x +15
1/4x +5 = 15 . . . . . . . . subtract 1/4x
1/4x = 10 . . . . . . . . . . . subtract 5
x = 40 . . . . . . . . . . . . multiply by 4
At 40 minutes, both will have the same number of signs made.
_____
<em>Alternate solution</em>
Often, you are told to "clear fractions" as a first step in solving equations containing fractions. Here, you would do that by multiplying both sides by 4.
1/2x +5 = 1/4x +15
2x +20 = x + 60 . . . . . multiply by 4
x + 20 = 60 . . . . . . . . . subtract x
x = 40 . . . . . . . . . . . . . subtract 20
Answer:
≈201.06193
Step-by-step explanation:
A = πr2=(π)82
≈201.06193
Answer by JKismyhusbandbae: B) 25.7 feet
How to get answer: Divide the length of a tile by 12 to convert it from inches to feet. Then multiply by the number of tiles between the blackboard and the back of the room to find the total length of the classroom. Round to the nearest tenth if necessary.
Answer:
-6
Step-by-step explanation:
combine like terms- -5x -30=0
move the 30 over- -5x=30
divide- x= 30/-5
x=-6