Answer:
75 days
Step-by-step explanation:
The multiplier each day is ...
(1/2)^(t/15)
Then we want to find t such that ...
5 = 160·(1/2)^(t/15) . . . . . . 5 mg are left after t days
5/160 = (1/2)^(t/15) . . . . . . divide by 160
1/32 = (1/2)^5 = (1/2)^(t/15) . . . . rewrite the left side
Equating exponents (equivalent to taking logs), we get ...
5 = t/15
5·15 = 75 = t . . . . . multiply by 15 to find t
After 75 days, there will be 5 mg left.
Radius on a coordinated plane
1/2(5x-6)-1/3(9x-5)+1
5/2x-3-3+5+1 distribute
5/2x-6+5+1 combine like terms
5/2
Answer:
product A on machine 1 would make 27 units (rounded down) 81 dollars profit.
product A on machine 2 would make 25 units (rounded down) 75 dollars profit.
product b on machine 1 would make 15 units (rounded down) 75 dollars profit.
product b on machine 2 would make 16 units (rounded down) 80 dollars profit.
Step-by-step explanation:
a1 refers to product a on machine 1
a2 refers to product a on machine 2
same rule applies for product b 1 and 2
