A. given a profit, there is only one number of tickets that could have been sold.
<span>b. P^-1(900)=400 </span>
<span>c. it means that 4470 of revenue translates to 820 tickets. </span>
<span>P(820)=8.5(820)-2500=4470
D. i was not able to answer as i dont understand the question
</span>
Answer:Price of laptop A = $1220
Step-by-step explanation:
Sum of the price: A + B = 2185
Sum of the price: A + C = 2571
B : C = 5 : 7
B = 5/7 × C
So, replace the B:
A + 5/7 C = 2185
A + C = 2571
Eliminate by subtracting the first from the second: 2/7 C = 386
C = 1351
So, A = 2571 - 1351 = 1220
Answer:
b. Yes
c. No
d. No
e. Yes
Step-by-step explanation:
hope this helped
Answer:
Step-by-step explanation:
Use commutative property of addition 
use associative property of addition 
Hence 
