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
Nezavi [6.7K]
1 year ago
13

a couple has three children. assuming each child has an equal chance of being a boy or a girl, what is the probability that they

have at least one girl? a. 1 b. .125 c. .5 d. .875
Mathematics
1 answer:
yaroslaw [1]1 year ago
3 0

Answer:

d. 0.875

Step-by-step explanation:

Having at least 1 girl out of 3 children means that there can be 1, 2 or 3 girls out of the 3 children.

So having at lest 1 girl out of 3 children is the same as saying that all 3 children are not boys.

The probability that all 3 children are boys would be

chance that child 1 is a boy * chance that child 2 is a boy * chance that child 3 is a boy = 0.5 * 0.5 * 0.5 = 0.125

And the probability that NOT all 3 children are boys would be

100% - probability that all 3 children are boys = 1 - 0.125 = 0.875

You might be interested in
Find the value of “X”
marta [7]

Answer:

x = 55

Step-by-step explanation:

A triangle equals 180 degrees, b will be used to find the missing angle.

21 + 34 + b = 180

55 + b = 180

subtract 55 from both sides

b = 125

A straight line is 180 degrees and the b, the missing angle, and x are supplementary angles so

125 + x = 180

x = 55

3 0
3 years ago
Ken's fitness member ship cost $100 to join plus a $25 monthly fee. Ken also used a coupon to get 10% off the monthly fee. What
GREYUIT [131]

The equation that models the total cost is y = 100 + 22.5m

Step-by-step explanation:

Fitness member ship cost = $100

Monthly fee = $25

Discount = 10% on monthly fee

To calculate new monthly fee after discount,  

25 - (25*10%) --> 25 - 2.5 --> $22.5

Number of months = m

Fee in m months = 22.5*m = 22.5m

<u>Equation:</u>

(c) is constant which is the membership fee

(x) is the monthly fee $22.5

(m) is the number of months

(y) is the total cost

So,

y = mx + c

y = m(22.5) + 100

y = 100 + 22.5m

Therefore, the equation that models the total cost is y = 100 + 22.5m

Keyword: Equation

Learn more about equations at

  • brainly.com/question/8955867
  • brainly.com/question/10708697

#LearnwithBrainly

5 0
3 years ago
Isolate the variable 4m=92
const2013 [10]
<span>Simplifying 4x = 92 Solving 4x = 92 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '4'. x = 23 Simplifying x = 23</span>
5 0
3 years ago
-1/19,7/4,-4/7 least to greatest
oee [108]
Answer:

Order from Least to Greatest
-4/7  <  -1/19  <  7/4


Showing Work
Rewriting as fractions or any negatives if necessary:
-1/19, 7/4, -4/7

The least common denominator (LCD) is: 532.

Rewriting as equivalent fractions with the LCD:
-28/532, 931/532, -304/532

Ordering these fractions by the numerator:
-304/532  <  -28/532  <  931/532

Therefore, the order of your input is:
-4/7  <  -1/19  <  7/4

8 0
3 years ago
Solve the proportion<br><br> 14/2 = t/7
MAVERICK [17]
<h3>Answer:</h3><h3>14/2=t/7</h3><h3>7=t//7</h3><h3>14=t</h3>
5 0
3 years ago
Other questions:
  • How many lines of symmetry does the figure have?<br><br><br> Which letter has rotational symmetry ?
    5·2 answers
  • What is 0.09 times 64?
    11·2 answers
  • What is the unit rate for 1500 m in six seconds
    7·2 answers
  • How many cubes will be in a tower that is 3 cubes tall?
    8·1 answer
  • Which is a solution to (x – 3)(x + 9) = –27?
    12·2 answers
  • PLEASE HELP!! WILL GIVE BRAINLIEST!
    12·1 answer
  • Help me pleaseeeeeeeeeee nowwwww
    6·2 answers
  • SOMEONE SMART PLEASE HELP!! use the Pythagorean theorem to find x​
    12·2 answers
  • 13-2x=4x+7 I’m being asked how to solve this
    7·2 answers
  • Frank paid $22.40 for sweatshirt it had been discounted by 30%. What was the regular price of the sweatshirt?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!