E maybe not certain that it is correct, hope it helps even tho i might be wrong
Their speed of separation will be equal to the sum of their speeds because they are in opposite directions.
Speed of separation = 40 + 50 = 90 miles per hour
Time = distance / speed
Time = 405 / 90
Time = 4.5 hours
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Answer:
Step-by-step explanation:
The number of adults in the family that is going to the amusement park is 2.
The number of children in the family that is going to the amusement park is 4.
Admission is a 21 point 75 for adults and 15 point 25 for children. This means that the admission cost for each adult is 21.75 and the admission cost for each adult is 15.25. Therefore,
The total cost of admission for the 2 adults would be
21.75 × 2 = 43.5
The total cost of admission for the 4 children would be
15.25 × 4 = 61
Therefore, the total cost of the families admission would be
43.5 + 61 = 104.5
Answer: 4
Step-by-step explanation:
#1: 12 pennies
#2: 2 pennies and 2 nickels
#3: 2 pennies and 1 dime
#4: 7 pennies and 1 nickel
3n - n = b - 1
2n = b - 1
n = b - 1
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2
