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]
3 years ago
11

In one classroom, exactly one-half of the seats are occupied. In another classroom with double the seating capacity of the first

, exactly three-quarters of the seats are occupied. If the students from both rooms are transferred to a third, empty classroom that has a seating capacitu exactly equal to the first two combined, what fraction of the seats in the third classroom is occupied?
(a) 1/4 (b) 1/3 (c) 3/4 (d) 2/3 (e) 3/4
Mathematics
2 answers:
nikitadnepr [17]3 years ago
4 0
Rajid it is (e) 3/4 and please follow me I need a follower
koban [17]3 years ago
3 0
I think the answer is e.
I hope it helps u.
You might be interested in
Ms. Donaldson earns $18.80 per hour for the first 40 hours she works in a week. She earns 1 ½ times that amount per hour for eac
juin [17]
You take $18.80 divide by 2 =$9.40 then $18.80+$9.40=$28.20
$28.20 x's 5.5=$$155.10
$18.80 x's 40=$752.00
<span>then add 752.00+155.10=$907.10</span>
4 0
4 years ago
Read 2 more answers
And this is the last one i need done
quester [9]

Answer:

x=-2.5,9

Step-by-step explanation:

Set them equal to each other to say 2x^2-9x=4x+45. Get them all on one side to get 2x^2-13x-45. Factor that out to get (x+2.5)(x-9). Set that equal to 0 to get x=-2.5,9

5 0
3 years ago
What is the value of this expression? [(3 5)⋅2−5]⋅3
valkas [14]
The attached picture above have the process of answering the question.

8 0
3 years ago
Use the image below to answer the following question. What relationship do the ratios of sin x° and cos y° share?
Drupady [299]

Answer:

B

Step-by-step explanation:

y \times  {4 \div 14 \frac{10}{4 |25 \\ | } }^{2}

8 0
2 years ago
Test the claim that the mean GPA of Orange Coast students is smaller than the mean GPA of Coastline students at the 0.005 signif
algol [13]

Answer:

a) F. H 0 : μ O ≥ μ C

H 1 : μ O < μ C

b) B. two-tailed

d) t=\frac{(2.91-2.96)-0}{\sqrt{\frac{0.05^2}{60}+\frac{0.03^2}{60}}}}=-6.64  

e) p_v =P(t_{118}  

f) B. Reject the null hypothesis

Step-by-step explanation:

Information provided

\bar X_{O}=2.91 represent the mean for the Orange Coast

\bar X_{C}=2.96 represent the mean for the Coastline

s_{O}=0.05 represent the sample standard deviation for Orange Coast

s_{C}=0.03 represent the sample standard deviation for Coastline

n_{O}=60 sample size for Orange Coast

n_{C}=60 sample size for Coastline

\alpha=0.005 Significance level provided

t would represent the statistic

Part a

For this case we want to test the claim that the mean GPA of Orange Coast students is smaller than the mean GPA of Coastline students

Null hypothesis:\mu_{O} \geq \mu_{C}  

Alternative hypothesis:\mu_{O} < \mu_{C}  

F. H 0 : μ O ≥ μ C

H 1 : μ O < μ C

Part b

For this case we need to conduct a left tailed test.

B. two-tailed

Part d

The statistic is given by:

t=\frac{(\bar X_{O}-\bar X_{C})-\Delta}{\sqrt{\frac{s^2_{O}}{n_{O}}+\frac{s^2_{C}}{n_{C}}}} (1)  

And the degrees of freedom are given by df=n_1 +n_2 -2=60+60-2=118  

Replacing the info we got:

t=\frac{(2.91-2.96)-0}{\sqrt{\frac{0.05^2}{60}+\frac{0.03^2}{60}}}}=-6.64  

Part e

We can calculate the p value with this probability:

p_v =P(t_{118}  

Part f

Since the p value is a very low value compared to the significance level given of 0.005 we can reject the null hypothesis.

B. Reject the null hypothesis

5 0
3 years ago
Other questions:
  • Find the surface area of a cube is 150 cm2. What is the length an edge of
    14·2 answers
  • Cynthia is planning a party. for entertainment, she has designed a game that involves spinning two spinners. if the sum of the n
    8·1 answer
  • 76 less than the quotient of an unknown number and 5 is 116.
    15·1 answer
  • Which describes condensation?
    11·2 answers
  • HELP PLS! I NEED AN ANSWER
    9·1 answer
  • Anybody need help with math? I'm kinda free at the momment and I will try to help as best as I can! &lt;)
    13·1 answer
  • 1 point
    13·1 answer
  • Which decimal is less than 9.5 when rounded to the nearest tenth?
    13·1 answer
  • 2x-3x²=5 in standard formation​
    13·2 answers
  • -7=blank-(-2)<br> need help pleace
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!