Answer:
a+0= a
Step-by-step explanation:
we know that
The <u>additive identity</u> property says that if you add a real number to zero or add zero to a real number, then you get the same real number back
so
Let
a -----> a real number
a+0=0+a=a
therefore
a+0= a
Answer:
n=4
Step-by-step explanation:
5n+34= -2( 1 - 7n)
Distribute -2 to (1-7n)
Which then gives you: 5n+34= -2+12n
Now, subtract -34 from both sides ( 34 and -2)
This then gives you: 5n-14n-36
Next, subtract 14 from both sides ( 5n and 14n)
This then gives you: -9n=-36
Lastly, divide -9 on both sides.
This then gives you, n=4
Math is WACK!
Hope this helped, attachment I added has all of the work on it!
4 and 1/2 hours = 270 minutes
270 minutes ÷ 6 lessons = 45 minutes each
final lesson = 45 minutes
A. it is shorter because if the first lesson is longer, it takes time away from the other lessons (making the final lesson shorter)
