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
fiasKO [112]
2 years ago
8

There are two 5th grade classes at Jones Elementary School. Mrs. Roberts has 17 girls and 18 boys in her class. Mr. Simpson has

16 boys and 19 girls in his class. If a 5th grade student is selected at random, what is the probability that it will be a girl? Give the answer as a fraction in simplest form.
Mathematics
2 answers:
snow_lady [41]2 years ago
4 0

Answer:

10/17

Step-by-step explanation:

you add all of the girls then you and all of the boys. There are 20 girls and there are 34 boys. You would divide both of them by two. then the fraction that you will get is 10/ 17.

boyakko [2]2 years ago
3 0

Answer:

The chance of a girl being picked is an 18/35 chance.

Step-by-step explanation:

You might be interested in
Select the pair of equations whose graphs are perpendicular.  
viktelen [127]
k:\ y=m_1x+b_1\ \ \ \ and\ \ \ \ l:\ y=m_2x+b_2\\ \\the\ line\k\ is\ perpendicular\ to\ the\ line\ l\ \ \ \Leftrightarrow\ \ \ m_1\cdot m_2=-1\\----------------------------\\\\A.\\2y=-3x+5\ \ \Rightarrow\ \ \ y=-  \frac{3}{2}  x+2.5\ \ \Rightarrow\ \ m_1=- \frac{3}{2} \\\\2x+3y=4\ \ \Rightarrow\ \ 3y=-2x+4\ \ \Rightarrow\ \ y=- \frac{2}{3}x+1 \frac{1}{3}  \ \ \Rightarrow\ \ m_2=- \frac{2}{3} \\\\m_1\cdot m_2=- \frac{3}{2} \cdot (- \frac{2}{3})=1 \neq -1

B.\\5x-8y=9\ \ \Rightarrow\ \ -8y=-5x+9\ \ \Rightarrow\ \ \ y=  \frac{5}{8}  x-1 \frac{1}{8} \ \Rightarrow\ \ m_1= \frac{5}{8} \\\\12x-5y=7\ \Rightarrow\ \ -5y=-12x+7\ \ \Rightarrow\ \ y= \frac{12}{5}x-1 \frac{2}{5}  \ \ \Rightarrow\ \ m_2= \frac{12}{5} \\\\m_1\cdot m_2= \frac{5}{8} \cdot  \frac{12}{5}= \frac{3}{2}  \neq -1

C.\\y=2x-7\ \ \Rightarrow\ \ m_1=2 \\\\x+2y=3\ \Rightarrow\ \ 2y=-x+3\ \ \Rightarrow\ \ y= -\frac{1}{2}x+1 \frac{1}{2}\ \ \Rightarrow\ \ m_2=- \frac{1}{2} \\\\m_1\cdot m_2= 2 \cdot (- \frac{1}{2})= -1\ \ \Rightarrow\ \ y=2x-7\ \ \ \ \perp\ \ \ \ x+2y=3


D.\\x+6y=8\ \ \Rightarrow\ \ 6y=-x+8\ \ \Rightarrow\ \ \ y=- \frac{1}{6} x+1 \frac{1}{3}\ \ \Rightarrow\ \ m_1= -\frac{1}{6} \\\\y=2x-8\ \Rightarrow\ \ m_2= 2 \\\\m_1\cdot m_2= -\frac{1}{6} \cdot2=- \frac{1}{3} \neq -1
7 0
3 years ago
( 6 , -10 ) y (-15 , 15 ) <br><br><br> Finding slope from two points :)
svet-max [94.6K]

Answer:

-25/21

Step-by-step explanation:

m=(y2-y1)/(x2-x1)=(15-(-10))/(-15-6)=(15+10)/-21=25/-21

5 0
2 years ago
What is the answer to this question
Lesechka [4]

Remark

There's a lot you don't know here. Are DE and GF parallel? Is B a right angle? You can't assume that it is. The safest way to proceed is to give x in terms of 58 and B. You might get an answer that gives you something like 32 but I don't think you can say that unless you are told somewhere that ABC is a right angle triangle with the right angle at B.

So what to do.

<BAC = 58o                               That's because <BAC = <IAK They vertically opposite.

<ABC + <BAC + <ACB = 180o       All triangles have 180o

<ACB = 180 - 58 - <ABC                Solve for an unknown angle of a triangle.

<ACB = 122 - <ABC

x = <ACB                                       Vertically opposite angles.

x = 122 - <ABC                             Answer  It's 32 if ABC is a right angle.  

6 0
3 years ago
Fill in the blank to make the two fractions equivalent.<br><br> /18 = 5/6
Dahasolnce [82]

Answer:

15/18=5/6

hope it helps ;-)

8 0
3 years ago
Read 2 more answers
Gordon recorded a temperature of -22°C, and Maki recorded a temperature of 13°C. How much warmer was the temperature that Maki r
Nikolay [14]

Answer:

35°C

Step-by-step explanation:

13+22=35

5 0
3 years ago
Other questions:
  • Suppose that the Bureau of Labor Statistics reports that the entire adult population of Mankiwland can be categorized as follows
    7·1 answer
  • Which graph represents 2x <br> - 5 &lt; 15
    13·1 answer
  • 864 divided by 76 plz answer soon
    10·2 answers
  • The diagram below shows scalene triangle JKL.
    12·2 answers
  • Does anyone know the answer to this?
    15·1 answer
  • In the diagram, the measure of 1 is 55°. If line y is rotated 5° clockwise about the point of
    9·1 answer
  • two terms of an arithmetic sequence are a6= 40 and a20= -16. write and explicit rule for the nth term
    14·1 answer
  • The width of your desk is 26 inches. How long is 75% of the width? Round to the nearest tenth if necessary.
    5·1 answer
  • Is 91.1 a irrational number​
    14·2 answers
  • How is the quotient of 714 and 17 determined using an area model?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!