To get an expression relating to x you need to have x alone on one side of your equation. ie x =
<span>Try this: </span>
<span>rx - st = r </span>
<span>remove st from the rx side </span>
<span>rx = r + st </span>
<span>now divide by r </span>
<span>x = (r + st)/r </span>
<span>You now have your expression relating to x</span>
Quantity equation: t + s = 48kg
Copper equation: 23t + 79s = 44*48
Multiply the quantity equation by 23 to set the problem up for the elimination method.
23t + 23s = 23*48
23t + 79s = 44*48
Subtract to solve for s.
56s = 21*48
s = 18 [Number of 79% bars needed]
t = 48 - 18 = 30 [Number of 23% bars needed]
Answer:
The result will be -1.
Step-by-step explanation:
Given:
Dividend =
Divisor =
Step 1 : Given divisor contains 2 single terms and 2 variables we will make it as 1 single term and 2 variables because our dividend is in this format.
hence the divisor will be
Step 2: now dividend is and divisor is
Hence the result will be .
Answer:
Step-by-step explanation:
distribute x by 2 and 3 so it would be 2x+3x
Approximately, 25.5 pages - so I would say between 25 to 26 pages