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3 years ago

Please helpppppppppp

Mathematics

1 answer:

mixas84 [53]3 years ago

3 0

Answer:

73/12 = 6 1/12

I hope this helps. If it doesn't, you can tell me.

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2. A bag contains 5 red marbles, 3 blue marbles, 6 white marbles, and 2 green marbles.

Georgia [21]

Answer:

Step-by-step explanation:

5 red

3 blue

6 white

2 green

total 16 marbles.

Note: P(E) = probability of event E happening

P(~E) = probability of event E NOT happening.

We usually leave probabilities in fractions whenever possible because they will not be subject to round-off errors.

A. choose one marble at random.

P(W) = 6 white / 16 total = 3/8

B. choose one marble at random.

P(~R) = (16-5)/16 = 11/16

C. choose one marble at random, then a second one without replacement,

there will be 3 blue out of 16 at the beginning, then if successful, there will be 2 blue out of 15.

P(BB) = (3/16)*(2/15) = 1 / 40

D. choose two with replacement

5 red out of 16 for first draw, still 5 red out of 16 for second draw.

P(RR) = (5/16)^2 = 25/256

5 0

3 years ago

A system of equations and its solution are given below.

ratelena [41]

Answer:

Step-by-step explanation:

The second equation in system B is only in terms of y, so we need to use elimination to eliminate the x term from the second equation in system A.

To do that, we need to multiply the first equation by 5.

5 (-x − 2y = 7)

-5x − 10y = 35

Add to the second equation. Notice the x terms cancel out.

(-5x − 10y) + (5x − 6y) = 35 + (-3)

-16y = 32

Combining this new equation with the first equation from system A will get us system B.

-x − 2y = 7

-16y = 32

4 0

3 years ago

out of 10 student, the favorite drink of 7 is Coke and the favorite drink of of the rest is fanta. a teacher picks a student at

CaHeK987 [17]

Answer:

a) 0.7

b) 0.3

c) 0

d) 1

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

(a) Coke

Out of 10, 7. So

$p = \frac{7}{10} = 0.7$

(b) fanta

3 out of 10. So

$p = \frac{3}{10} = 0.3$

(c) neither Coke nor fanta

7 Coke, 3 fanta, so all 10 are either coke or fanta. Thus:

$p = \frac{0}{10} = 0$

(d) either Coke or fanta

All 10. Thus:

$p = \frac{10}{10} = 1$

8 0

3 years ago

The improper fraction of 1 IS.... 81 0 3 2 3 S 3

Darina [25.2K]

Answer: 3 1 0

Step-by-step explanation:

8 0

3 years ago

50 points

Furkat [3]

answer is a or b

explanation

7 0

3 years ago