Answer:
14 = 8 + 2d
Step-by-step explanation:
Odometer is a device that is equipped in the vehicles to count the distance traveled by the vehicle.
It has been given in the question that,
Distance between beach and her friend's house = d miles.
Distance between Brenna's house and her friend's house = 8 miles
Total distance traveled by Brenna = 14 miles.
Starting from the Brenna's house, we will add each distance traveled till the end of her journey and will make it equal to the 14 miles.
So,
Total distance = Distance between Brenna's house and her friend's house + Distance between her friend's house and beach + Distance between beach and her friend's house
Thus, we can now put the values as,
14 = 8 + d + d
We will get the final equation as
14 = 8 + 2d
The story problem of shawn's poster length and width is the correct one
Answer:
a. Plan B; $4
b. 160 mins; Plan B
Step-by-step explanation:
a. Cost of Plan A for 80 minutes:
Find 80 on the x axis, and trave it up to to intercept the blue line (for Plan A). Check the y axis to see the value of y at this point. Thus:
f(80) = 8
This means Plan A will cost $8 for Rafael to 80 mins of long distance call per month.
Also, find the cost per month for 80 mins for Plan B. Use the same procedure as used in finding cost for plan A.
Plan B will cost $12.
Therefore, Plan B cost more.
Plan B cost $4 more than Plan A ($12 - $8 = $4)
b. Number of minutes that the two will cost the same is the number of minutes at the point where the two lines intercept = 160 minutes.
At 160 minutes, they both cost $16
The plan that will cost less if the time spent exceeds 160 minutes is Plan B.
The second option would be parallel
