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
poizon [28]
3 years ago
13

The cost of a bus for a field trip was split evenly between the 120 students going. But the day before the trip, 30 more student

s decided to go. Dividing the cost evenly among all 150 students brought the average cost down $1.20 per person. What is the total cost of the bus? NEED ANSWER ASAP! WILL PICK BRAINLIEST ANSWER AND REWARD 80 POINTS!
Mathematics
2 answers:
AlexFokin [52]3 years ago
8 0

Alright,


120=students

150=students 

So if a question is asking you the total, then that means you must do addition.

The cost is 720


Hope this helped.

Igoryamba3 years ago
4 0
Hey there,

So there would be 150 students × by $1.20 per person would be $180.
_______________________________________________________________

→ All that was needed to do was to do 150 students multiplied by the prices of 1.20. That's it! Final answer would be $180.

Final answer $\boxed{180}

Hope this helps.

~Jurgen
You might be interested in
Help me with it plizz
Liono4ka [1.6K]
2x + 9 = -65
2x = -65 - 9
2x = -74
x = -74/2
x = -37

So, your final answer is -37

Hope this helps!

3 0
3 years ago
4.One attorney claims that more than 25% of all the lawyers in Boston advertise for their business. A sample of 200 lawyers in B
AleksAgata [21]

Answer:

z=\frac{0.315 -0.25}{\sqrt{\frac{0.25(1-0.25)}{200}}}=2.123  

p_v =P(Z>2.123)=0.0169  

The p value obtained was a very low value and using the significance level given \alpha=0.05 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 5% of significance the proportion of lawyers had used some form of advertising for their business is significantly higher than 0.25 or 25% .  

Step-by-step explanation:

1) Data given and notation  

n=200 represent the random sample taken

X=63 represent the lawyers had used some form of advertising for their business

\hat p=\frac{63}{200}=0.315 estimated proportion of lawyers had used some form of advertising for their business

p_o=0.25 is the value that we want to test

\alpha=0.05 represent the significance level

Confidence=95% or 0.95

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that more than 25% of all the lawyers in Boston advertise for their business:  

Null hypothesis:p\leq 0.25  

Alternative hypothesis:p > 0.25  

When we conduct a proportion test we need to use the z statistic, and the is given by:  

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

3) Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.315 -0.25}{\sqrt{\frac{0.25(1-0.25)}{200}}}=2.123  

4) Statistical decision  

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level provided \alpha=0.05. The next step would be calculate the p value for this test.  

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

p_v =P(Z>2.123)=0.0169  

The p value obtained was a very low value and using the significance level given \alpha=0.05 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 5% of significance the proportion of lawyers had used some form of advertising for their business is significantly higher than 0.25 or 25% .  

8 0
3 years ago
Are property taxes based on the market value of the home?
Butoxors [25]
Yes because the property taxes are calculated by taking the mill levy and multiplying it by the assessed value of the owner’s property
3 0
3 years ago
The sides of a rectangle are in the ratio of 4:5. If the width is 28 in., find the length, the perimeter, and the area of this r
nadezda [96]
If the width is 28 inches, then divide that by 4 and you get 7. You multiply that by 5 to get the length. That would be 35. Just to check, you know that the width 28 and length 35 are in ratio 4:5 if you divide by 7. The perimeter would be 2(35+28)=63*2=126. So the perimeter is 126. The area would be 35*28 which is 980. To sum up, the answers are as follows.

Length: 35 in
Perimeter: 126 in
Area: 980 inches squared.
5 0
3 years ago
How many 0 are in one million
Shalnov [3]

Answer:

6

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Which is the right one?
    5·1 answer
  • Which unit rate is the lowest price per ounce? (5 points)
    6·2 answers
  • What is 5068 to the second power
    9·1 answer
  • Solve and show how you did 5 (x-1) + 3 = 13
    15·2 answers
  • The sum of twice a number and 5 is at most 15
    9·1 answer
  • Which value is equivalent to 8 multiplied by 4 multiplied by 2 whole over 8 multiplied by 7, the whole raised to the power of 2
    14·2 answers
  • The cost to rent a truck is a $75 flat fee. plus $0.55 per mile driven.
    8·1 answer
  • I need help with this question
    10·2 answers
  • Uhh i guess you just find x ..
    9·1 answer
  • andre says that 5 3/4 + 2 1/4 = 7 1/2 because 7 4/8 = 7 1/2 identiy his mistake draw a picture to prove that he is wrong
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!