Answer:
3n - 4m
Step-by-step explanation:
(2n-5m)+(n+m)
so we get this equation and from here, we expand the equation by removing the brackets, you should get:
2n-5m+n+m and just solve from here.
to make it easier, put the like terms together:
2n+n+m-5m
= 3n-4m
Answer:
R=9
Step-by-step explanation:
Change the sign of -2 to 2
Add 2 to 7
Answer:
1
Step-by-step explanation:
the +4 turns into -4
6-4=2 the (+4-4 on the left would cancel out)
-2x/2 would cancel out as well
2 divided by 2 = 1
you could have used a scientific calculator on google (for future reference)
20÷2=10 ( gallons half full)
10+5=15 ( gallons you add)
The tank has 15 gallons and is 75% full
Answer:
D. $3.
Step-by-step explanation:
We have been given that a box of 7 items costs $20.79. We are asked to find the cost of each item.
To find the cost of each item, we will divide total cost by total number of items.


Upon rounding our answer to nearest dollar, we will get:

Therefore, the cost of each item will be approximately $3 and option D is the correct choice.