Answer: coeficient is 20 and the constant which is 13
Step-by-step explanation:
The second table, because -1 x 3 = -3
-3 - 3 = -6 therefore, the second table matches the equation y= 3x -3
Answer:
22*1.06 = cost of meal with tax = 23.32
22*.20 = tip on the pre-tax cost = 4.40
Total = $27.72
Step-by-step explanation:
Answer:
317
Step-by-step explanation:
I did this on khan academy
Answer:
D
Step-by-step explanation:
Call the first person A who can do the job in 5 hours.
Call the second person B who can do the job in 7 hours.
The formula for this problem is
Time = A*B/(A + B)
Time = 5*7 / (5 + 7)
Time = 35 / 12
Time = 2 hours and 11/12 of an hour.
The answer is D.
