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
garri49 [273]
3 years ago
12

Eye Color Hair Color Blue Gray Green Brown Marginal Total Blond 42 5 21 10 78 Red 12 22 19 12 65 Brown 22 5 12 34 73 Black 9 3 1

1 64 87 Marginal Total 85 35 63 120 303 As part of a class project, a university student surveyed students in the cafeteria to look for a relationship between the students’ eye color and hair color. The table contains the survey results. The percentage of the sample population with brown eyes and black hair is larger than the percentage of the sample population with blue eyes and black hair by percentage points. (Round off your answer to the nearest whole number.)
Mathematics
2 answers:
LiRa [457]3 years ago
7 0

Answer:

Step-by-step explanation:

The correct answer is 63

iogann1982 [59]3 years ago
5 0
The <u>correct answer</u> is:

18.

Explanation:

There were 303 people surveyed total.

There were 64 people with brown eyes and black hair; that makes the percentage of the population 64/303 = 21.12% ≈ 21%.

There were 9 people with blue eyes and black hair; that makes the percentage of the population 9/303 = 2.97% ≈ 3%.

This means the percentage of students with brown eyes and black hair was greater than the percentage of students with blue eyes and black hair by:
21-3 = 18%.
You might be interested in
The value of -4*2 is______
sashaice [31]

the value of -4*2 is -8 jdjdjdjdhdhdjdjdjdhdh

3 0
3 years ago
Read 2 more answers
Solve 2x2 + 20x = −38. (1 point)
RoseWind [281]

Answer:

The solutions are x=-5+\sqrt{6}  and x=-5-\sqrt{6}


Step-by-step explanation:

we have

2x^{2} +20x=-38

Divide by 2 both sides

x^{2} +10x=-19 ------> x^{2} +10x+19=0

we know that


The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to


x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}


in this problem we have


x^{2} +10x+19=0

so


a=1\\b=10\\c=19


substitute

x=\frac{-10(+/-)\sqrt{10^{2}-4(1)(19)}}{2(1)}


x=\frac{-10(+/-)\sqrt{100-76}}{2}


x=\frac{-10(+/-)\sqrt{24}}{2}


x=\frac{-10(+/-)2\sqrt{6}}{2}


x1=\frac{-10(+)2\sqrt{6}}{2}=-5+\sqrt{6}


x2=\frac{-10(-)2\sqrt{6}}{2}=-5-\sqrt{6}


8 0
3 years ago
Read 2 more answers
Substitute these values in the combined variation
zysi [14]

Answer: F=6.67 x 10^21

G:6.67 x 10^ -11 N m2/kg2

8 0
3 years ago
2. Four friends share 3 apples equally.
Slav-nsk [51]

Answer:

1/3

Step-by-step explanation:

Each friend gets 1/3 of an apple

5 0
3 years ago
There were 45 runners to start a race. In the first half of the race, 1/3 of them dropped out. In the second half of the race, 3
Helen [10]
45/3=15 45-15=30 30/5=6 3x6=18 30-18=12 the answer is 12
5 0
3 years ago
Other questions:
  • Pls help only today
    6·2 answers
  • 5=1/5w in algebraically
    11·1 answer
  • Please help. Find the value for x to the nearest tenth. See picture.
    13·1 answer
  • Perform the following division. Show the multiplication you would do to make the divisor a whole number. Round the answer to thr
    15·1 answer
  • 13,501 round up to the nearest ten thousand
    14·1 answer
  • Simplify:<br> 7x2+ 4X - X² .
    15·2 answers
  • Will mark as brainliest if correct
    12·1 answer
  • Which of the following shows the Commutative Property of Multiplication?
    10·1 answer
  • (04.03 LC)<br> What is the slope of the line that passes through (1, 4) and (1, -3)?
    9·1 answer
  • A book has 180 pages. Haley read 12 pages each day.after a certain number of days there are 60 pages left,which equation and sol
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!