All categories

2 years ago

1) A bag contains 4 gold marbles, 6 silver marbles, and 32 black marbles. Someone offers to play

1 answer:

6 0

The expected value of playing this game = a weighted average of the winnings (or losses) multiplied by the odds of winning: (3/37)3 + (9/37)2 + (25/37054)(-1) = 9/37 + 18/37 - 25/37 = 27/37 -25/37 = 2/37 = about 0.054 winnings = $0.054 = 5.4 cents

You might be interested in

Y = 7x + 3 what is the X and Y intercepts

Neko [114]

To find the x intercept,plug a zero in for y and solve.
To find the y intercept,plug a zero in for x and solve.
y = 7x + 3
g = 7(0)+3
y = 3
(0,3)

y = 7x + 3
0 = 7x + 3
Subtract 3 from both sides.
-3 = 7x
Divide both sides by 7
-3/7 = x
(-3/7, 0)

3 0

3 years ago

A washer and a dryer cost $562 combined. The washer costs $88 less than the dryer. What is the cost of the dryer?

Yanka [14]

Answer:

Let the dryer cost x.

Then, the washer costs (x+87)

Together, they cost (x) + (x+87) = 787

2x+87 = 787

2x = 700 [subtract 97 from both sides]

x = 350 [divide both sides by 2]

The dryer cost $350.

Check: The washer cost $437. Together, they cost $787 [good to check, right?]

Hope this helps...

8 0

3 years ago

Read 2 more answers

___ are released that cause the cell to lyse or cytolysis

Vladimir79 [104]

Answer:

immune system

Step-by-step explanation:

I don't know exactly but I think the immune system

7 0

2 years ago

Read 2 more answers

36m⁴-√16 pls help asap

shusha [124]

Answer:

Step-by-step explanation:

$(a^2-b^2)=(a-b)(a+b)\\ \\ 36m^4-4\\ \\ (6m^2-2)(6m^2+2)\\ \\ 4(3m^2-1)(3m^2+1)$

3 0

3 years ago

You are creating a decorative rope that is at least 20 feet long. You do not have enough 6 inch beads to make the rope, so you w

Inessa05 [86]

You can use at most 24 beads that are 10 inches long to decorate the rope.

Step-by-step explanation:

Given,

Length of rope = 120 feet

1 foot = 12 inches

20 foot = 20*12 = 240 inches

Length of bead = 10 inches

Let,

x represents the number of beads used on rope.

As the rope is 240 inches long, therefore, the total length of beads cannot exceed 240 inches.

Length of each bead*Number of beads ≤ length of rope

$10*x\leq 240\\10x\leq 240$

Dividing both sides by 10

$\frac{10x}{10}\leq \frac{240}{10}\\x\leq 24$

You can use at most 24 beads that are 10 inches long to decorate the rope.

Keywords: inequality, division

Learn more about inequalities at:

#LearnwithBrainly

4 0

3 years ago