1: (-2,-4)
2: (-3,5)
3: (4,-2)
Answer:
Step-by-step explanation:
Then Joe and Jeremy will do the job in one hour time
Joe takes 5 hours to do the job then in one hour time he does 1/5
Joe takes 400% as long as the time it takes Jeremy to finish the job
then 5 hours 400
x ?? 100 x = 5/4
So Jeremy will take 5/4 hours to do the job.
Then in one hour working together Joe and Jeremy they will do
1/5 + 1/ (5/4) = 1/5 + 4/5 = 5/5 = 1
Then Joe and Jeremy will do the job in one hour time
And Joe and Joanne will do half job in one hour
92 can be rounded to 90
68 can be rounded to 70
90 x 70 = 6300
Answer:
8
Step-by-step explanation:
Use the rule in algebra: change side,change sign... (when you move a digit, see whether it's +,-,× or ÷ and work out the opposite to get the letter on its own.
12b+3=-2b-4
12b+2b=-4-3
14b=-7/:14
b=-7/(14)
b=-1/2
