Let n = number of nickels, and p = number of pennies.
The number of coins is 25, so we get this equation.
n + p = 25
The value of the coins is 0.05 per nickel, and 0.01 per penny.
0.05n + 0.01p = 0.73
Now you have a system of equations.
n + p = 25
0.05n + 0.01p = 0.73
Solve the first equation for n:
n = 25 - p
Now substitute into the second equation.
0.05(25 - p) + 0.01p = 0.73
1.25 - 0.05p + 0.01p = 0.73
-0.04p = -0.52
p = 13
There were 13 pennies.
Now we substitute 13 for p in n + p = 25 to find out the number of nickels.
n + 13 = 25
n = 12
There are 13 pennies and 12 nickels.
Check: 13 pennies and 12 nickels does total 25 coins.
13 * 0.01 + 12 * 0.05 = 0.13 + 0.60 = 0.73
The value is $0.73.
Our answer is correct.
Answer:
mnbvcxzasdfghjkoiuytrew
Step-by-step explanation:
mnbvcxzasdfghj play amoung us
Given:
Total number of questions = 6
Choice for each question (in MCQ) = 4
Assuming that no questions are left unanswered.
To find:
The total number ways to answer the quiz, assuming that no questions are left unanswered.
Solution:
Here, Number of ways to answer each question = 4
To find the total number ways to answer 6 MCQ, we have to have to multiply number of ways to answer each question 6 times.
Total number of ways to answer six-question quiz with 4-choice multiple choice questions is
Therefore, the required number of ways is 4096.
Answer:
Sis your answer is 2
Step-by-step explanation:
ⁱᵐ ᵍᵒᵒᵈ, ʰᵒᵖᵉ ʸᵒᵘʳ ᵈᵃʸ ᵍᵉᵗˢ ᵇᵉᵗᵗᵉʳ
Answer:
Joe is 18
Step-by-step explanation:
represent mike as m, so m=3 and joe as j,
If Joe is 6 times as old as mike then j = 6(m)
Plug in for m=3 so you get j= 6(3)
Simplify: J= 18