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
levacccp [35]
3 years ago
15

the 5th and 6th grade students at jackson middle school are going on a field trip. there are 6 classes in the fitth grade, and e

ach class has 24 students. there are 3 classes in the sixth frade and each clas has 20 students. if the trachers clollect $12 from each student in the trip, how much money will be collected, so the answer I have is $2448, I multiply 24x6=144 and them I multiply 20x3=50 I added together =204*12= 2448 is this is right!
Mathematics
1 answer:
Mariulka [41]3 years ago
4 0
No because there are 20 multiplied by 3 is 60. So the answer would be 60+144=204x12=2448 but the last answer was still correct
You might be interested in
A family of 8 goes to the amusement park. Each ride at the park costs 1 ticket per person. If they all go on every ride together
Alexxx [7]

Answer: A. 42 tickets

Step-by-step explanation: 8, 16, 24, 32, 40, 48

8 0
3 years ago
Read 2 more answers
Tom is putting money into a savings account. He starts with $650 in the savings account, and each week he adds $60 . Let S repre
mario62 [17]
S = 60W + 650 <== ur equation

after 18 weeks...so sub in 18 for W

S = 60(18) + 650
S = 1080 + 650
S = 1730 <==
7 0
3 years ago
Read 2 more answers
A bus is traveling at a constant speed. If the bus trvaels 15 1/2 miles in 1/3 of an hour, how many miles will the bus travel in
Dima020 [189]

Answer:

46.5

Step-by-step explanation:

convert 15 1/2 to 15.5

multiply it by 3 because it moves 15.5 milea every 1/3 of an hour

5 0
2 years ago
Graph the line for y+1=−3/5(x−4) on the coordinate plane
Andrej [43]
Solve for y:
y + 1 = -3/5x + 2.4  (multiply 4 by 3/5 no negatives because negative times a negative is a positive)
y = -3/5x + 1.4
Now graph the y-intercept of 1.4. 
Then plot points using slope. 
Hope this helps and let me know if you have more questions!
7 0
3 years ago
Some research suggests that police officers are more likely to make an arrest in the presence of bystanders. If mentally disorde
zmey [24]

Answer:

t=\frac{7.03-3.58}{\frac{9.42}{\sqrt{20}}}=1.638    

p_v =P(t_{(19)}>1.638)=0.0589    

If we compare the p value and the significance level given \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can conclude that the true mean is not significantly higher than 3.58 at 5% of signficance.    

Step-by-step explanation:

Data given and notation    

\bar X=7.03 represent the sample mean

s=9.42 represent the sample standard deviation    

n=20 sample size    

\mu_o =3.58 represent the value that we want to test  

\alpha=0.01 represent the significance level for the hypothesis test.    

z would represent the statistic (variable of interest)    

p_v represent the p value for the test (variable of interest)    

State the null and alternative hypotheses.    

We need to conduct a hypothesis in order to check if the mean is higher than 3.58 :    

Null hypothesis:\mu \leq 3.58    

Alternative hypothesis:\mu > 3.58    

Since we don't know the population deviation, is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:    

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)    

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".    

Calculate the statistic    

We can replace in formula (1) the info given like this:    

t=\frac{7.03-3.58}{\frac{9.42}{\sqrt{20}}}=1.638    

P-value    

First we need to calculate the degrees of freedom given by:

df=n-1=20-1=19

Since is a right tailed test the p value would be:    

p_v =P(t_{(19)}>1.638)=0.0589    

Conclusion    

If we compare the p value and the significance level given \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can conclude that the true mean is not significantly higher than 3.58 at 5% of signficance.    

7 0
3 years ago
Other questions:
  • Decide whether the relation defines a function.
    15·1 answer
  • Which place is the 4 in? 815.604
    8·2 answers
  • Find the solution g-62=14
    6·2 answers
  • What is the range of this set of data? 111, 97, 63, 84, 100, 119, 72
    11·2 answers
  • Find the sum of the series and show your process for finding each term leading to the final sum.
    6·1 answer
  • What is one sixth ad a right angle
    14·1 answer
  • A pair of dice is rolled 50 times. What is the probability that a sum of 6 is rolled exactly 6 times? Round your answer to the n
    7·1 answer
  • G (x) = f ( x + 1).<br>graph​
    7·1 answer
  • Can you help me please??​
    15·1 answer
  • 120 x ? = 40
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!