The answer <span>5 was added to each side.
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x² + 5x + 126 = x² + 17x + 66
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Subtract x² from both sides:
x² + 5x + 126 - x² = x² + 17x + 66 - x²
5x + 126 = 17x + 66
126 - 66 = 17x - 5x
60 = 12x
x = 60/12
x = 5
Thus, <span>5 was added to each side.</span>
To add and subtract fractions you have to have the denominators as the same number. Say you have 1/2 - 1/4 and you need to solve. You will need to make the denominators the smallest number that they both go into. In this case, they both go into 4.
Since the fraction we need to change, 1/2, has a numerator of 2, and 2 times 2 is four, you need to multiply the numerator and denominator by 2. Then you get 2/4. Now subtraction is easy!
Subtract the numerators and keep the denominator. 2/4 - 1/4 = 1/4
Answer:
See the solutions below
Step-by-step explanation:
Given data
Distance = 24.6km
in meters= 24.6*1000= 24600m
time= 30 minutes
in seconds= 30*60= 1800
int hours= 0.5 hour
speed of the particle in
(i) km/h= 24.6/0.5= 49.2 km/h
(ii) m/s.= 24600/ 1800= 13.66 m/s
You can divide 1800 by 10 and times it by 4 giving a answer of 720
Answer:
-6 < x ≤ 6
Step-by-step explanation: