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
marta [7]
3 years ago
11

A pet store contains 35 light green parakeets (14 females and 21 males) and 44 sky blue parakeets (28 females and 16 males). You

randomly choose one of the parakeets. What is the probability that it is a female or a sky blue parakeet?
Mathematics
1 answer:
Mamont248 [21]3 years ago
7 0
You can use this formula <span>P(AorB) = P(A) + P(B) - P(AandB) 

Given:
35 LG (14 F & 21 M)
44 SB (28 F & 16 M)

Req:
- the probability that it is a female (F) or a sky blue (SB)

Sol:
</span>P(F or SB) = P(F) + P(SB) - P(F and SB) 
                 = [(14 F + 28 F)/(35 + 44)] + [(44 SB)/(35 + 44)] - [(28 F)/(35 + 44)]
                 = 53.16 + 55.70 - 35.44
                 = 73.42%

You have to deduct 28 female parakeets from 44 sky blue parakeets because the 28 parakeets are already accounted for in the female parakeets. You can also think of how many ways you can choose a female parakeet and a sky blue parakeet. Add all female parakeets (14 + 28) = 42. Sky blue parakeet equaled to 44. Minus the 28 female parakeets included in the sky blue parakeet to avoid double counting. 42 + 44 - 28 = 58 divided by 79 (35 + 44) total parakeets = 73.42%


You might be interested in
What is the equation in slope-intercept form of the line that passes through the point (5, 0) and is parallel to the line repres
alisha [4.7K]

Answer:

y=1.2x-5

Step-by-step explanation:

Parallel lines are equal lines that never intersect or touch each other.

When a problem gives you information about the line being parallel to another, you'll know the slope of the line is going to be the same.

3 0
3 years ago
Convert 0.0855 to a fraction. Move numbers to the blanks to complete the fraction.
Elis [28]

Answer:

a

Step-by-step explanation:

no

4 0
3 years ago
Read 2 more answers
1st question: Reuben received 80 dollars. Write a signed number to represent this change.
lesya692 [45]

Answer:

1) +80

2) -1520

Step-by-step explanation:

Positive Signed numbers are used in real world situations to indicate the increase. Examples include; increase in weight, deposit of money into an account, increase in income, profit, height above sea level, etc. They are all represented by positive signed numbers.

Whereas, negative signed numbers show decrease. Examples include; loss of weight, withdrawal of money from an account, loans, liabilities, losses, temperature below zero degrees, height below sea level.

1) We are told that Reuben received 80 dollars. Thus, it means he received an increase in the amount of money he already had. Thus, the signed number will be +80.

2) We are told that A car corporation produced 1520 fewer cars this month than last.

Thus, the signed number will be negative since there is a decrease in number of cars.

Thus, signed number = -1520

7 0
3 years ago
HELP FAST What is the relationship between the ratios? 5/8 and 8/10 Drag and drop to complete the statement.The ratios are choic
ivanzaharov [21]
Cross multiply
5/8 and 8/10
5x8=40
8x8=64
40 does not equal 64 so not proportional
3 0
3 years ago
Help I need someone to help me....
Alenkasestr [34]
4.for every minute you walk 30 feet
5. Minutes
6.distance
7.just put 1 on the x axis and 30 on the y axis so the coordinate pair would be (1,30) and do the same for the rest (3, 90) (5,150) and (7,210)
3 0
3 years ago
Other questions:
  • A triangle has side lengths 30,98,103 is if a right triangle
    10·2 answers
  • John is participating in a marathon that is 26 2 miles. His distance (d, in
    12·1 answer
  • Determine the sign of the sum of -8+8.<br> A) positive<br> B) negative<br> C) zero
    8·2 answers
  • Troy’s gross pay is $4,276.88. His deductions total $1,320.69. What percent of his gross pay is take-home pay? A) 30% B) 31% C)
    15·2 answers
  • Joel wants to fence off a triangular portion of his yard for his chickens. The three pieces of fencing he has to use are 8 feet,
    13·1 answer
  • Please Help.
    8·1 answer
  • 22. Two automobiles started at the same time from a point, but traveled in
    5·1 answer
  • 142- 132= 14+13 pls do this question for me
    15·2 answers
  • SOMEONE PLEASE HELP!! i’ll give brainliest
    9·2 answers
  • which answer choice is it?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!