Answer:
18
Step-by-step explanation:
Answer:
(Amount for 1 inch of red ribbon) x (240) = total cost
Step-by-step explanation:
Answer:
Step-by-step explanation:
The lady gets paid $8 per hour that the shop is opened, so multiply the pay rate ($8) by the amount of hours the shop is opened
$8 * 8 = $64
Now add the $64 onto the expense of running the shop
$64 + $240 = $304
Now take that amount away from Friday's sales
$530 - $304 = $ 226
Profit($226) = Income($530) - Expenses($304)
$226 = $226
=)
Answer:
dC = 2.44
Relative error = 19%
Step-by-step explanation:
Δv = 3 ; ΔT = 1 , v = 23, T = 8
Use differential Calculus
Relative Error
dC / C @(T = 8, v=23) * 100 = 19 %
Answer:
13.20 min
Step-by-step explanation:
Rate of the reaction is a measure of the rate of decomposition of the compound.
Rate (R) = Concentration (C) ÷ time (t)
C1/t1 = C2/t2
C1 = 52.3% = 0.523
t1 = 8.6 min
C2 = 80.3% = 0.803
t2 = C2t1/C1 = 0.803×8.6/0.523 = 13.20 min (to 2 decimal places)
