Answer:
2x-5y=20
Step-by-step explanation:
The required probabilities are .
Given:
Pennies = 65
Nickels = 27
Dimes = 30
Quarters = 18
To find:
The probability of each.
Solution:
The probability formula:
Total number of coins:
The probability of selecting Pennies is:
The probability of selecting nickels is:
The probability of selecting dimes is:
The probability of selecting quarters is:
Therefore, the required probabilities are .
Learn more:
buy souvenirs for at least 8 friends.
A postcard book costs $2.50 and a magnet costs $4.00. She can spend up to $30 altogether. Let x represent the number of postcard books and y represent the number of magnets.
Part A
A. x + y <8
B. 2.5x +4y <30
C. x+y > 8
D. 2.5x + 4y >8
E. x>0
F. y>0
G. x + y>0
Plsss help the one in the picture is part 2