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iren [92.7K]
3 years ago
11

P’(rolling a number less than five and landing on tails)

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
3 0

Answer:

P’(rolling a number less than five and landing on tails) = 1/3

Step-by-step explanation:

dice has 6 numbers and you only want 4 of them, so you have a 4 in 6 chance of doing that which is equal to 4/6 or 2/3

a coin has 2 side so the chance of getting tails is 1 in to or 1/2

therefore the probability of getting a number less than 5 and a tails is

4/6 times 1/2 = 4/6 x 1/2 = 4/12 = 1/3

or you can do it this way:

2/3 times 1/2 = 2/3 x 1/2 = 2/6 = 1/3

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Serena is building a bookcase she cuts two pieces of wood from one board one piece is 1 7/8 feey long and another is 3.5 ft long
Vladimir79 [104]

Answer:

\frac{43}{8}  feet

Step-by-step explanation:

The total change is the sum of the length of two boards she cut.

First board length is 1  7/8th feet. Let's change to improper fraction:

1 7/8 = 15/8 feet

Second board lengrh is 3.5 feet, or 3  1/2 feet. Let's change to improper fraction:

3  1/2 = 7/2 feet

Let's add the two:

\frac{15}{8}+\frac{7}{2}\\=\frac{15+28}{8}\\=\frac{43}{8}

The change in original board is 43/8 feet

3 0
3 years ago
Solve the inequality.<br> 5(w - 3) &lt; 5w + 20
saveliy_v [14]

Answer:

-15 < 20

Step-by-step explanation:

5(w - 3) < 5w + 20

Distribute;

5w - 15 < 5w + 20

Subtract 5w from both sides;

-15 < 20

7 0
2 years ago
Read 2 more answers
Help please I don’t understand
MaRussiya [10]

set them equal to their sum. which in this case is 141 then solve for x and plug it into your original equation to get your answer.

3 0
3 years ago
Tom plants 3 seeds.
Rasek [7]

Answer:

A. 64/125

B. 124/125.

Step-by-step explanation:

A).  As the events ( germinate or not germinate) are independent we multiply the probabilities.

Prob(All seeds germinate) = 4/5*4/5*4/5 =  64/125.

B). Probability of at least one germinating =  1 - probability that none germinate

Probability of  1 seed not germinating = 1 -45 = 1/5.

So Prob(at least one germinating)

= 1 - (1/5 * 1/5 * 1/5)

= 1 - 1/125

= 124/125.

5 0
3 years ago
The perimeter of a square is 109.8 square inches. what is the length of one square? A 2.74 in B 10.98 in C 25 in D 27.45 in
Kitty [74]

Answer:

The perimeter of a square is 109.8 square inches. what is the length of one square? A 2.74 in B 10.98 in C 25 in D 27.45 in

Step-by-step explanation:

5 0
3 years ago
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