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nikitadnepr [17]
3 years ago
6

A local blood drive predicts 40% of its donors will have Type O blood.Which simulation could be used to model the number of dono

rs will have Type O blood?......................
A.) spin two spinners with 6 equal sections......................:::......::::::............B.) Draw one marble from a bag containing 4 white marbles and 10 purple marbles...................................C.)Flip a coin and roll a die 4 times.............D.)Select one card from a set containing 4 red cards and 6 black cards
Mathematics
1 answer:
Sati [7]3 years ago
4 0
The answer is D because 4+6 equals 10 or 100% and 40% are o blood so 60% are not
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HELP!! PLEASE<br><br> please help me quick
jolli1 [7]

M1 = 65°

M2= 75°

all three angles is 180°

M7 = 40°

7 and 6 are identical angles corresponding

M6= 40°

5 0
2 years ago
Ann had 45 fliers to post around town. Last week, she posted 1/3 of them. This week, she posted 2/5 of the remaining fliers. How
Gennadij [26K]
First, Ann posted 1/3 of the 45 fliers. 1/3 * 45=15, meaning that she posted 15, leaving 30 fliers. Next, she posted 2/5 of the remaining fliers. 2/5 * 30 = 12, so she posted 12 more fliers. 30-12 is 18, so she has 18 left over.
8 0
3 years ago
Read 2 more answers
A bag of marbles contains 2 gold marbles, 10 silver marbles, and 30 black marbles. You decide to play the following game: Random
Rasek [7]

Answer:

-71 cents

Step-by-step explanation:

The total number of balls is 2 + 10 + 30 = 42 balls

The probability of getting gold marbleP_g = 2/42 = 0.04762

The probability of getting silver marbleP_s = 10/42 = 0.2381

The probability of getting black marbleP_b = 30/42 = 0.7143

With the price for each case, we can calculate the expected value of the game by multiplying the price money by the probability and sum them up

E = 5P_g + 2P_s - 2P_b

E = 5*0.04762 + 2*0.2381 - 2*0.7143 = -0.714 dollar

or -71 cents.

So expect to lose 71 cents everytime you play this game

5 0
3 years ago
Read 2 more answers
I got 8.000 it isn't right Because the answer with out estimating is 17128. I need this to!
Digiron [165]
Let's round 2141 to 2000
2000 times 8=1000 times 2 times 8=1000 times 16=16000

estimate would be 16000
7 0
3 years ago
Find the measure of an arc formed by 1 slice of pizza
krok68 [10]
I believe the answer is 2.2 but i could be wrong and if so sorry.
8 0
3 years ago
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