1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
anyanavicka [17]
3 years ago
12

A bag contains 10 black, 15 white, and 25 blue marbles. What is the probability of randomly selecting one

Mathematics
1 answer:
gulaghasi [49]3 years ago
4 0

Answer: 0.8 or 80%

Step-by-step explanation:

First find the total number of marbles:

10 + 15 + 25 = 50 marbles total

To find the number of marbles that are not black:

15 + 25 = 40 marbles that are not black

Set up ratio:

\frac{40}{50} = 0.8 or 80%

You might be interested in
An outdoor summer camp offers its campers 14 activities. Campers make a schedule for their morning, afternoon, and evening sessi
777dan777 [17]

Answer:

4.6 Different schedules are possible because

Step-by-step explanation:

14 divided by 3 = 4.6

8 0
3 years ago
What is -2.4 + 6.7 - 3.2 <br><br> Answers: -11.3, 1.1, 2.3, 7
Sav [38]

Answer:

<h2><em><u>Answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>1</u></em><em><u>.</u></em><em><u>1</u></em><em><u>.</u></em><em><u> </u></em></h2>

<em><u>Hope</u></em><em><u> </u></em><em><u>this</u></em><em><u> </u></em><em><u>helps</u></em><em><u> </u></em><em><u>you</u></em>

6 0
3 years ago
Read 2 more answers
What is the formula of the area of any triangle
MrRissso [65]

Answer:Side x side x side

Step-by-step explanation:

Since it is usually equally sided, it would be SxSxS

4 0
3 years ago
Read 2 more answers
Find the value of the expression
MArishka [77]

The value would be -35.357.

8 0
3 years ago
The diagram shows the cross-section of a wall of a cinema. It has to be painted. Work out the area that needs to be painted.
mestny [16]

Answer:

Area = 370 m²

Cost to paint = £105

Step-by-step explanation:

Area of the wall of a cinema hall = Area of a trapezoid (1)+ Area of a rectangle (2) + Area of a trapezoid (3)

Area of a trapezoid = \frac{1}{2}(b_1+b_2)h

where b_1 and b_2 are the parallel sides and h is the distance between these sides.

Area of trapezoid (1) = \frac{1}{2}(11+12)\times 6

                                  = 69 m²

Area of the rectangle (2) = Length × Width

                                         = 12 × 15

                                         = 180 m²

Area of the trapezoid (3) = \frac{1}{2}(12+10)\times 11

                                         = 121 m²

Now area of the wall = 69 + 180 + 121

                                   = 370 m²

One tin covers the area = 25 m²

Number of tins required to paint the wall = \frac{\text{Total area}}{\text{Area covered by one tin}}

= \frac{370}{25}

= 14.8

Therefore, number of tins to be purchased = 15

Cost to paint the complete wall = 15 × £7

                                                       = £105

8 0
3 years ago
Other questions:
  • Give me the answer to this problem. What is 80% Of $5.00
    12·1 answer
  • Wich best describes how to solve the equation 26×=74
    6·2 answers
  • 20.83 as a mixed number
    8·1 answer
  • Which pair of undefined terms is used to define the term parallel lines
    15·2 answers
  • February 29th is on Sunday. on what day will the next February 29th be?​
    6·1 answer
  • Charlie saves $28.35 each month for 6 months. In the seventh month, he only saves $10.70.
    9·1 answer
  • HELP ASAP ITS EASY BUT IM BLANKING AND ITS 20 POINTS PLUS BRAINLIEST
    14·2 answers
  • 8. Find the number from the following expanded form: 9 x 10% + 2 x 102 + 3 x 10
    9·1 answer
  • Ufncunniufncfcnnuunr please heLlLpPpPpPpPppOpPp
    6·2 answers
  • Last month McKinneys Apothecary dispense the following liquid medication 1 gallon 3 quarts 7 pints and 3 dozens 6ounces of bottl
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!