8; 20/5=4, 4*2=8 so therefore it's 8 pounds
-50
So you want to pair them up
(1-2)+(3-4)+(5-6)..+(99-100)
And write the answer for each pair
(-1)+(-1)+(-1)..+(-1)
When looking at this you can see that each pair equals -1
So you divide 100 by 2 and multiply that by the -1
100/2=50
50*-1=-50
Answer is 50
You would use the same method if you were going up to a number like a 500
The answer would be -250
Answer:
a. m/6
b. k-9 (don't get confused with k less than nine)
c. 2x
d. 2x+4
e. n/7
f. (a+b)/4
<em>~Happy Holidays~</em> :)
