Answer:
Company one charges $11 + $0.16 per min.
Then if you talk for x minutes, the cost will be:
C₁(x) = $11 + ($0.16 per min)*x
For company two, the prize is $20 + $0.11 per min, and if yo talk for x minutes, the cost will be:
C₂(x) = $20 + ($0.11 per min)*x
Now we want to find the value of x, the number of minutes, such that the cost is the same with both companies.
C₁(x) = C₂(x)
$11 + ($0.16 per min)*x = $20 + ($0.11 per min)*x
($0.16 per min)*x - ($0.11 per min)*x = $20 - $11
($0.05 per min)*x = $9
x = $9/($0.05 per min) = 180 mins
If you speak for 180 minutes, the cost is the same in both companies.
2^(3-9)-11 =
1 step: subtract the 3 and 9 to get 6
(3-9)=6
2 step: multiply 2 to its self 6 times and
you should get 64
2*2=4*2=8*2=16*2=32*2=64
3 step: subtract 11 by 64 to get 53
64-11=53
hope I help if so hit the brainliest thanks
Answer:
4.54 inches
Step-by-step explanation:
