Answer:
d = 576
Step-by-step explanation
Think of the two different speeds as belonging to 2 different cars going to the same place, taking the same route and going to the same place.
Let the time traveled by the fast car = t
Let the time traveled by the slower car = t+4
Let the rate of travel of the slow car = 36 mph
Let the rate of travel of the fast car = 48 mph
===========
d = 36*(t + 4)
d = 48 * t
Since the distance is the same, they can be equated.
48t = 36(t + 4) Remove the brackets.
48t = 36t + 144 Subtract 36t from both sides.
48t - 36t = 144 Combine
12t = 144 Divide by 12
t = 144/12
t = 12
Therefore the faster car takes 12 hours to get where it is going.
d = 48 * t
d = 48 * 12
d = 576
Answer:
C(m) = $(40+3m)
Step-by-step explanation:
In this question, we are asked to write an equation representing the total cost of renting a truck by Makayla.
We proceed as follows;
Form the question, we can deduce that there is an initial cost of $40 and a rental fee of $3 per mile driven.
Now, we were made to know that she had driven m miles. We now calculate the rental fee for this m miles she has driven. Mathematically, we only need to find the product here. The rental fees for the m Miles traveled would be m * 3 = $3m
Now the total cost C(m) would be = $40 + $3m or simply C(m) = $(40+3m)
Answer:
5
Step-by-step explanation:
Mei-Ling could be paired with any of the other 5 committee members, so there are 5 possible pairs than include Mei-Ling.
