The expected value is $38.46.

The probability of drawing a 10 from any suit is 4/52. Multiply this by the earnings, 500:

4/52(500) = 2000/52 = 38.46

6 0

3 years ago

What number is 7 units to the left of -1?

g100num [7]

Answer:

the answer to your question is -8

8 0

3 years ago

Plz help me 2x+y=4 4x+2y=8

aleksklad [387]

Answer: Y= 2 X=1

Step-by-step explanation:

2x+y=4 4x+2y=8

2x =/2 2y= /2

y=2 4x=4

/4= /4

X= 1

6 0

3 years ago

Read 2 more answers

Prove that if a and b are positive integers whose sum is a prime p, their greatest common divisor is 1.

Tasya [4]

Proof by contadiction.

Let assume there exist such positive integers $a$ and $b$ whose sum is a prime number $p$ , that their greatest common divisor is greater than 1.

$a,b\in\mathbb{Z^+}\\d=\text{gcd}(a,b)>1\\\\a=de\\b=df\\e,f\in\mathbb{Z^+}\\\\a+b=p\\de+df=p\\d(e+f)=p\\$

Since $p$ is a prime number and $d>1$ , then $d=p \wedge e+f=1$ , but we assumed earlier that $e,f\in\mathbb{Z^+}$ , and there are no two positive integers that sum up to 1.

q.e.d.

7 0

3 years ago