In a standard 52 - card deck are:
- 4 aces,
- 16 face cards or tens ( 4 * 3 + 4 = 16 ).
There should be:
4 * 16 = 64
Answer:
64 blackjack hands.
Answer:
37 years.
Step-by-step explanation:
Interest = PRT/100 where P = Initial Amount, R = rate, T = the time.
So we have the equation:-
8600 + 8600*3.95 * T / 100 = 21000
8600 + 33970T / 100 = 21,000
8600 + 339.7T = 21000
339.7T = 21000 - 8600
T = (21000 - 8600) / 339.7
T = 36.5 years
Answer:
(3, -3)
Step-by-step explanation:
To solve for a system of equations, use substitution.
First, solve for one variable in an equation.
2x - 3y = 15
Add 3y to both sides.
2x = 3y + 15
Divide both sides by 2 to get x by itself.
x = 1.5y + 7.5
Put this in the other equation.
5x + 2y = 9
Substitute the variable.
5(1.5y + 7.5) + 2y = 9
Distribute the 5 inside the 1.5y + 7.5.
7.5y + 37.5 + 2y = 9
Combine like terms.
9.5y + 37.5 = 9
Subtract 37.5 from both sides.
9.5y = -28.5
Divide both sides by 9.5.
y = -3.
Now take this value and put it in the other equation to get your x.
2x - 3y = 15
Substitute variable.
2x - 3(-3) = 15
Multiply.
2x + 9 = 15
Subtract 9 from both sides.
2x = 6
Divide both sides by 2.
x = 3.
Your pair is (3, -3).
900 is the correct answer