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
chubhunter [2.5K]
3 years ago
5

200 elementary school students were surveyed to find their blood groups. Of those, 55 were of blood group A, 85 of blood group B

, and 21 of blood group O. What is the probability that a randomly chosen student has either blood group A or blood group B? A) 0.25 Eliminate B) 0.60 C) 0.70 D) 0.81
Mathematics
2 answers:
gizmo_the_mogwai [7]3 years ago
8 0

Answer:

P(A or B) = P(A) + P(B) =  

55

200

+  

85

200

= 0.70

Step-by-step explanation:

C is correct

MA_775_DIABLO [31]3 years ago
7 0
The answer would be c for sure
You might be interested in
How many centimeters or in 400 Millimeters​
RUDIKE [14]

There are 40 centimeters in 400 millimeters

Please rate my answer

8 0
3 years ago
What is the simplified form of 12z^2-7z-12/3z^2+2z-8? ...?
gavmur [86]
It should go like this:

(4z + 3) (3z - 4) / (3z - 4) (z + 2)

Then you just cancel out (3z -4) and (3z -4), and the final simplified form of this polynomial is:

(4z +3) / (z + 2)
4 0
4 years ago
Which expression is equivalent to 3x+10−x+12<br> a.24x<br> b.4x + 22<br> c.26x<br> d.2x + 22
jok3333 [9.3K]
The answer is:  [D]:  2x + 22  .
______________________________________________
8 0
4 years ago
What is 56/18 in simplest form
Triss [41]

Answer:

The answer in the simplest form would be 28/9 or 3 1/9

Step-by-step explanation:

Very simple you would divide the 56 and the 18 by 2 and you get 28/9.

or you could change it to a improper fraction in that case it would be 3 1/9

6 0
3 years ago
Read 2 more answers
What is the slope of a line perpendicular to the line with equation y = 1/6x – 2? help pls very urgent
valina [46]
Solution:

1) Simplify \frac{1}{6}x to \frac{x}{6}
y=\frac{x}{6}-2

2) Add 2 to both sides
y+2=\frac{x}{6}
​​
3) Multiply both sides by 6
(y+2)\times 6=x

4) Regroup terms
6(y+2)=x

5) Switch sides
x=6(y+2)

Done!
7 0
3 years ago
Other questions:
  • What is the slope of the line shown below?
    14·2 answers
  • A rental car agency charges $17 per day plus 7 cents per mile to rent a certain car. Another agency charges $22
    11·1 answer
  • Madison Middle School spends $750 per year on club activities. They spend at least twice the amount on after school activities.
    5·1 answer
  • Ann and Betty shared some money in the ratio 2:3. Ann received 120 dollars.
    7·2 answers
  • A line has a gradient of 4 and passes through the post (1,7). what is the equation?
    12·2 answers
  • Simplify these ratios: 2:3, 5:8, 6:8, 4:7
    12·1 answer
  • to make fruit punch susannah mixes lemonade with orange juice in the ratio 5:9 she use 40 ounces of lemonade how many ounces of
    9·2 answers
  • I need help urgently!! I’ll make you brainliest!!
    13·1 answer
  • Right 1, up 2<br> Rule translation
    5·1 answer
  • Use the parabola tool to graph the quadratic function f(x)=x2−12x+27.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!