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murzikaleks [220]
3 years ago
13

a jar contains 30 red, 40 blue, and 50 white buttons. you pick one button at random, find the probability that it is red or blue

Mathematics
2 answers:
abruzzese [7]3 years ago
5 0

Answer:

0.58 rounded to the nearest hundredths

Step-by-step explanation:

30+40+50=120

now add red+blue

30+40=70

70/120

pls mark me brainliest

Afina-wow [57]3 years ago
4 0

Answer: 25/120

Step-by-step explanation: if you do a proportion with x over 100 alongside 30 over the total 120 then solve. (30 times 100 divided by 120 to solve for x) you get 25!

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PLEASE HELPPPPPPPPPP
Sauron [17]

Answer:

167/346 or 0.483

Step-by-step explanation:

From the question given above, the following data were obtained:

Number of Tails (T) = 167

Number of Heads (H) = 179

Probability of tail, P(T) =?

Next, we shall determine total outcome. This can be obtained as follow:

Number of Tails (T) = 167

Number of Heads (H) = 179

Total outcome (S) =?

S = T + H

S = 167 + 179

Total outcome (S) = 346

Finally, we shall determine the probability of tails. This can be obtained as follow:

Number of Tails (T) = 167

Total outcome (S) = 346

Probability of tail, P(T) =?

P(T) = T / S

P(T) = 167 / 346

P(T) = 0.483

Thus, the probability of tails is 167/346 or 0.483

3 0
2 years ago
Helen rolls a dice and flips a coin.<br> Calculate the probability that she will get a 4 and a tail.
Rom4ik [11]

Answer:

1/12

Step-by-step explanation:

The probability that Helen will roll a 4 is 1/6 the probability that she will get tails is 1/2. Multiply those two events together to find the probability of P(A and B)

5 0
3 years ago
Read 2 more answers
Please help with this word problem! plz
Elena-2011 [213]
Answer = 5.5 x 5.5 = 30.25
5 0
3 years ago
Read 2 more answers
Marco bought $30 worth of football cards. If he bought 12 packs of cards, how much does each pack of cards cost?
Mandarinka [93]

Answer:

2.5

Step-by-step explanation:

30/12=2.5

7 0
2 years ago
Read 2 more answers
The sum of three numbers is 54. The third number is 2 times the second. The second number is 10 more than the first. What are th
Svetllana [295]

Answer:

8, 18 and 36 respectively.

<h2>explanation</h2>

sum=54

1st number=x

2nd number=x+10

3rd number =2(x+10)=2x+20

x+x+10+2x+20=54

put the liketerms together

x+x+2x=54-10-20

4x=24

divide both sides by 4 to get

x=8

Input the other values

6 0
3 years ago
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