No problem. Since the - and + cancel and become a -, you get
3-4
which is -1
Hope this helped.
Answer:
C) 4 pencils for each student
D) 8 students per team
Step-by-step explanation:
A unit rate is the number of unit of the first type of a quantity corresponding to one unit of the second type of quantity.
That is, if a and b are two quantities,
Then, unit rate of quantity a = x units of 'a' per 1 unit of 'b' or x units of 'a' for 1 unit of 'b'
By the above statement,
The example of unit rates from the given options are,
4 pencils for each student,
8 students per team
H3000 -you 67778 it’s equals to ninth five yes
A) multiply equation A by -2 so you get -2x - 2z = -12 and then you can add both equations to eliminate z