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3 years ago

A bag has 3 red marbles, 3 blue, 4 green and 2 yellow. What is the theoretical probability of pulling a red marble?

Mathematics

1 answer:

svetlana [45]3 years ago

4 0

Answer:

Fraction: $\frac{1}{4}$

Decimal: 0.25

Percentage: 25%

Step-by-step explanation:

Have a good day :)

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In this figure

alina1380 [7]

Answer:

∠y = 62.5°

∠x = 27.5°

Step-by-step explanation:

z is right angle. ∠z = 90°

∠x = ∠y - 35

∠x + ∠y + ∠z = 180 {Angle sum property of triangle}

y - 35 + y + 90 = 180

y + y - 35 + 90 = 180 {Combine like terms}

2y + 55 = 180

2y = 180 -55 {Subtract 55 from both sides}

2y = 125 {Divide both sides by 2}

y = 125 /2

∠y = 62.5°

∠x = 62.5 - 35 = 27.5°

6 0

2 years ago

Molly works at an electronics store. Her last customer purchased a DVD player for $67.65 and five DVDs for $57.93, including tax

ra1l [238]

67.65 + 57.93 = 125.58

200.00 - 125.58 = $74.42 change back

3 0

3 years ago

Find the sum of the following ap .1) 1/15, 1/12, 1/10,....,to 11 terms

sertanlavr [38]

Answer:

33/20

Step-by-step explanation:

1/12 - 1/15 = 5/60 - 4/60 = 1/60

d = 1/60

a_n = a_1 + d(n - 1)

a_11 = 1/15 + (1/60)(11 - 1)

a_11 = 1/15 + 1/6

a_11 = 4/60 + 10/60

a_11 = 14/60

a_11 = 7/30

a_12 = 14/60 + 1/60

a_12 = 15/60

a_12 = 1/4

s_n = n(a_1 + a_n)/2

s_11 = 11(1/15 + 7/30)/2

s_11 = 11(2/30 + 7/30)/2

s_11 = 11(9/30)/2

s_11 = 99/60

s_11 = 33/20

8 0

3 years ago

What is the measure of arc AC?

8_murik_8 [283]

If Im not mistaken, the answer should be d because if you add all the degrees up, then you would get 222. And if you subtract 360 from 222 you get 138. I hope this helps. :)

7 0

3 years ago

Orlon Jewelry, a retail store, restructures its employees’ schedules every six months. The employees are asked for their shift p

natima [27]

Answer:

Step-by-step explanation:

Total sales:

Brian:

July, 38.9; August, 35.9, September, 40.5; October, 36.1

= $151,400

Laura:

July, 41.1; August, 36.8, September, 39.2; October, 43.3

= $160,400

Miguel:

July, 40.1; August, 44.1, September, 43.3; October, 39.7

= $167,200

Wanda:

July, 41.2; August, 36.5, September, 43.2; October, 39.3

= $160,200

Ranking:

1) Miguel (5 pm)

2) Laura (8 am)

3) Wanda (2 pm)

4) Brian (11 am)

6 0

2 years ago

Read 2 more answers