Y=X-10
Step-by-step explanation:
Step 1:
Let X be the input and Y be the output variable
Given: The output is 10 less than the input
Step 2:
Y=X-10 be the require function
Eg:
for X=1, Y = -9
X=2, Y=-8, etc
Okay. So 7:30-10:00 is 2 hours 30 minutes or 2 1/2 hours. To find this, we have to do 156/60 to find the amount of time it takes to get there. 156/60 is 2.6, so it would take more than 2 1/2 hours to arrive in London. Kim does not arrive in London before 10:00 AM.
Step-by-step explanation:



<u>17.5 (Ans</u>)
<span>Let x = # of rides
Plan A: 10 + 3x
Plan B: 20 + x
if x < 5 rides then plan A is better buy
if x = 5 both plans are the same
if x > 5 then plan B is the best buy
Prove:
x = 6 (rides)
plan A: </span>10 + 3x = 10 + 3(6) = 10+18 = $28
plan B: 20 + x = 20 + 6 = $26