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
Gennadij [26K]
3 years ago
13

Katie has 8 black marbles, 12 clear marbles, and 14 blue marbles in a bag. If she picks one at random, what is the probability t

hat she will pick a black marble? (Enter your answer as a fraction in its reduced form.) a 4/17 b 7/34 c 6/17 d 12/34
Mathematics
2 answers:
mojhsa [17]3 years ago
6 0

Answer:

4/17

Step-by-step explanation:

8 black marbles, 12 clear marbles, and 14 blue marbles = 34 marbles

P( black) = number of black/ total

              = 8/34

              =4/17

aleksandr82 [10.1K]3 years ago
4 0

Answer:

a   4/17

Step-by-step explanation:

if you add them all up, you get 34. 8 out of 34 reduced is 4/17

You might be interested in
Drag each expression to the correct location on the model. Not all will be used
grandymaker [24]

Answer:     \dfrac{x^{2}+2x+1 }{\mathbf {x-1}} \cdot \dfrac{\mathbf {5x^{2} +15x-20} }{7x^{2} +7x}

Step-by-step explanation:

\dfrac{\dfrac{5x^{2} +25x+20}{7x} }{\dfrac{x^{2} +2x+1}{7x^{2} +7x} } =\dfrac{5x^{2} +25x+20}{7x} \times \dfrac{7x^{2} +7x}{x^{2} +2x+1}=\dfrac{5x^{2} +25x+20}{7x} \times \dfrac{7x(x +1)}{(x+1)^{2} }=\\\\=\dfrac{5x^{2} +25x+20}{x+1} =\dfrac{{5(x+1)(x+4)}}{x+1}=5(x+4)

5(x+4)=\dfrac{5(x-1) \cdot (x+4)}{x-1}=\dfrac{5x^{2} +15x-20}{x-1}

<em>Thus, the expressions will be used: (5x² + 15x - 20) and (x + 4).</em>

<em>Let's check:</em>

\dfrac{x^{2}+2x+1 }{\mathbf {x-1}} \cdot \dfrac{\mathbf {5x^{2} +15x-20} }{7x^{2} +7x} =\dfrac{(x+1)^{2} }{x-1}  \cdot \dfrac{5(x-1) \cdot (x+4)}{7x(x+1)} =\\\\=\dfrac{(x+1) \cdot 5 \cdot (x+4)}{7x} =\dfrac{5x^{2} +25x+20}{7x}

5 0
3 years ago
Can someone answer this please?
SOVA2 [1]
We can break this complicated looking shape into two more familiar ones, an icosoles triangle and a rectangle. Using the area of a triangle formula (base*height)/ 2, we get (3*6)/2=18/2= 9. Next, we multiply 8 by 16 to solve for the rectangle and get 128. We add 9 and 128 to get 137.

Your answer is 137.
8 0
3 years ago
Read 2 more answers
a) A standard deck consists of 52 cards. Four of the cards are aces. Twenty-six of the cards are red. A poker hand consists of 5
Rzqust [24]

Answer:

a)The number of aces in the poker hand is greater

b)It is about\sqrt{2} as accurate.

5 0
3 years ago
Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 – 4x = 5
saw5 [17]

The solution to x^2 - 4x = 5 is x = -1 or 5

<h3>How to solve the equation?</h3>

The equation is given as:

x^2 - 4x = 5

Take the coefficient of x

k = -4

Divide by 2

k/2 = -2

Square both sides

(k/2)^2 = 4

Add this value to the sides of the equation

x^2 - 4x + 4= 5 + 4

Express as a difference of two squares

(x - 2)^2 = 9

Take the square root of both sides

x - 2 = ±3

Add 2 to both sides

x = 2 ± 3

Evaluate

x = -1 or 5

Hence, the solution to x^2 - 4x = 5 is x = -1 or 5

Read more about quadratic equations at:

brainly.com/question/10449635

#SPJ1

4 0
2 years ago
In 2 hours the 3 boys picked a total of 1347 cherries. If they share the cherries evenly, then
Natasha_Volkova [10]
Each boy will get 449 cherries
7 0
1 year ago
Read 2 more answers
Other questions:
  • Gloria works at the drugstore 5 days a week last week she worked a total of 35 hours she work the same number of hours every day
    10·1 answer
  • 6 = x + 2 over 3 help me please!!
    6·2 answers
  • about 42%of Alaska's population lives in the city of Anchorage. If Alaska has a total population of 648,818 about how many peopl
    11·2 answers
  • Which length is equivalent to 26 yards?
    11·1 answer
  • Please describe to me why there are no middle terms when multiplying (x - 4) and (x + 4)
    10·1 answer
  • What is 20% of $156,750
    7·2 answers
  • jack has 100 football cards that he wants to put in a photo album. Each page in the album will hold eight cards. How many pages
    15·1 answer
  • determine between which consecutive integers the real zeros of each function are located f(x) = 3x3 – 10x2 + 22x – 4
    13·1 answer
  • 14. Two cars are traveling on two different roads that are perpendicular to each other. On a coordinate
    9·1 answer
  • judy borrow 600 from her friend and promises to pay it back in 3 years with the 4% interest rate. calculate the simple interest
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!