Twelve hours later then we went to sleep and then woke me back at my house after my birthday and I got invited
Answer:
6.5
Step-by-step explanation:
im doing this for points ok
Answer:
Step-by-step explanation:
Factorise the numerator and denominator
x² - x - 6 = (x - 3)(x + 2)
x² + 2x - 15 = (x - 3)(x + 5)
Hence
= 
Cancel the factor (x - 3) on the numerator/ denominator leaving
← equivalent expression
Answer:
Step-by-step explanation:
x+4y=6
x+4y=15
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x+4y=6
-(x+4y)=-15
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x+4y=6
-x-4y=-15
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0=-9
no solution
Answer: No Solution
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x+4y=7
3x+12y=21
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simplify 3x+12y=21 into x+4y=7
Answer: Infinitely many solutions
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x-y=1
2x+y=4
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x=y+1
2(y+1)+y=4
2y+2+y=4
3y=4-2
3y=2
y=2/3
x-2/3=1
x=1+2/3
x=3/3+2/3=5/3
Answer: x=5/3, y=2/3. (5/3, 2/3).
The number of hours she practices each day is unknown, so let's call it x.
She practices dancing x hours each day she goes to practice.
Since she practices 3 days per week, in a week she practices 3x hours.
In two weeks she practices 2(3x) hours, or 6x hours.
We are told she practices 12 hours in 2 weeks, so 6x must equal 12.
The equation is
6x = 12
We can solve it by dividing both sides by 6.
x = 2
She practices 2 hours per day.
Check:
2 hours per for 3 days = 2 * 3 hours = 6 hours in 1 week.
In 2 weeks, she practices 2 * 6 hours = 12 hours.
Our solution is correct.
