Answer:
r = -1 9/20
Step-by-step explanation:
-2 1/4 = r - 4/5
Switch sides:
r - 4/5 = -2 1/4
Add 4/5 to both sides.
r = -2 1/4 + 4/5
Change the mixed numeral into a fraction:
r = -9/4 + 4/5
The LCD is 20.
r = -45/20 + 16/20
r = -29/20
r = -1 9/20
Answer:
Step-by-step explanation:
To factor this, you must first take out the GCF (Greatest Common Factor), that 
and -147 both have. The terms only have 3 in common, which can be divided with
However, we're still not done since 49 is a perfect square and 
can be split into 2, like so:
If you're unsure about the final answer, you can multiply it all together to see if you got the original expression.
Answer:
90 boxes
Step-by-step explanation:
If you divide 5,400 by 60 you get 90. Hope this helps, let me know if correct, and have a great day!!
Answer:
6
Step-by-step explanation:
3(1)=3 3(2)=6 3(3)=9 3(4)=12 3(5)=15
3(6)=18 3(7)=21 3(8)=24
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3(6)=18 is closest to 20
so the greatest number of batches Xiaoming can make is 6.
You are right i tried it and i got it right
