Answer:
B - y = 2x - 8
Step-by-step explanation:
Step 1: find slope
2x + 4y = 6
4y = -2x + 6
Make y the subject of the formula
y =( -2x + 6)/4
We can separate to get the slope
y = -2x/4 + 6/4
y = -x/2 + 3/2
Slope m = -1/2
Step 2: using a point slope form equation
y - y1 = m ( x - x1)
Note: if two lines are perpendicular to the other, it is always a negative reciprocal of each other
ie m = 2
Substitute m into the equation
y - y1 = 2(x - x1)
Step 3: sub the point
( 6 , 4)
x1 = 6
y1 = 4
y - 4 = 2( x - 6)
Step 4 : using a slope intercept form equation
Open the bracket
y - 4 = 2x - 12
y = 2x - 12 + 4
y = 2x - 8
The equation of a line is
y = 2x - 8
There are a total of 6 people working, and each person takes 2 minutes to prepare one bag. That is an average of 3 bags per minute. Then you take 900/3 which is 300 minutes to finish all of the bags. The question asks how many HOURS it takes so you need to convert 300 minutes into hours by dividing it by 60 since there are 60 minutes per hour. 300/60=5 so it takes her and her friends a total of 5 hours.
Answer:
a = 1
Step-by-step explanation:
Original Equation:
-1 + 8 = 10 - 3a
Add 1 to both sides
8 = 11 - 3a
Subtract 11 from both sides
-3 = -3a
Divide both sides by -3
a = 1
Hope this helps :)
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A. The tax is 5.16, B. 91.16
23/99, because 2/9 is equal to .2222 repeating, and 23/999 is equal to .023, so the only one that could equal to .2323 repeating is 23/99.
