Answer:
x = -3, x = 0 is a extraneous solution
Step-by-step explanation:
Step 1: Cross-multiply
3x² = 4x² + 3x
Step 2: Isolate <em>x</em>'s
0 = x² + 3x
Step 3: Factor
0 = x(x + 3)
Step 4: Find roots
x = 0, -3
Step 5: Double check work
Plug in both to see if they both work. Only x = 0 should be extraneous. We now have our answer!
Ron must work 9 hours. If he makes 300 every 5 hours, that means he makes 60 every hour. 60x9 = 540
Answer:
The only answer is 67 degrees
Step-by-step explanation:
A straight line is 180 degrees and x is one part and the other part is 113 degrees, so if you do 180-113 it will be 67.
10 laps in 8 minutes
--------------------------------
10
1 lap in 8/10 (4/5) of a minute
Answer is B, 8/10 minute!
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Step-by-step explanation:
3x - 4(4) = 65
3x - 16 = 65
3x = 81
x = 27
