Answer:
Step-by-step explanation:
Represent Alice with A, her friend with F and you with Y.
From the question, we have:
--- Twice as much Alice means 2 times Alice's earnings
--- 2 less than her friend
Required
Determine the total amount
Substitute for A in
Substitute for F in
The total amount is calculated by adding the earnings of Alice, her friend and you
<em>Hence, the total earnings is 5d - 2</em>
Average speed = total distance/ time taken
= 200/5 = 40 miles per hour.
So first you need 1 adult with every 6 children so do 6*4 and got 24. From that you get 4 adults with 2 leftover children. For the other class which has 28 children, you would still need 4 adults. Now since you said the teacher is included as an adult only 3 more are needed for the trip, and that is your answer.
z= 2y-4x ok i hope this helps.