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
mote1985 [20]
3 years ago
14

The Quinn family drove 228 miles in 4 hours at a constant rate.

Mathematics
2 answers:
lisabon 2012 [21]3 years ago
7 0
Distance = Time x Rate of travel miles/hr so D/T = rate of travel 228/4 = 57 miles/hr. Answer is A
Angelina_Jolie [31]3 years ago
5 0
A. The distance traveled each hour would be the total distance divided by the number of hours.
You might be interested in
A cistern can be completely drained by a pipe in 6 hours. It can be filled by two pipes in 4 hours and 5 hours, respectively. Ho
boyakko [2]
X/4 +x/5 -x/6=1
make the denominator the same: 
15x/60 +12x/60 -10x/60=1
17x=60
x=60/17=3.53 hours

the second choice is the correct answer.
6 0
3 years ago
Determine which point lies on the graph of the equation y=7x^2-3x+2
siniylev [52]
There are a lot of points. which points do you want?
minimum is (3/14 , 1,6785) ; (2,24) ; (-3,74)........
3 0
3 years ago
Sam loves to read. The longest time it ever took her to finish a book was 23 hours. The shortest time was 1 hour and 5 minutes.
ehidna [41]
C 22 hours and 55 minutes
8 0
3 years ago
Read 2 more answers
Given that R=9x+8y find x when y=8 and R=4
Ilya [14]

Answer:

Step-by-step explanation:

R = 9x + 8y

4 = 9x + 8*8

4 = 9x + 64

Subtract 64 from both sides

4 - 64 = 9x + 64 - 64

-60 = 9x

Divide both sides by 9

-60/9 = 9x/9

-20/3 = x

x = -6 2/3

8 0
3 years ago
Read 2 more answers
ssume that in the year 2000 there are four different forms of psychotherapy available for curing phobias. an experimenter arrang
Liono4ka [1.6K]

We will compare pairwise treatment with the help of t-statistic to find the best treatment.The t-statistic, which is used in statistics, measures how far a parameter's estimated value deviates from its hypothesized value relative to its standard error.We need to check if the treatments are effective in curing phobia.

First, we must determine whether there is a relationship between the type of treatment used and the final result (cure or not cure). We may examine this using the Chi-square test of association.In the second phase, we must determine if all therapies are the same or different if the alternative hypothesis—that is, whether there exists any kind of link between therapy and cure—is accepted.

We must perform a One-way ANOVA for the treatments in this case, assuming that all treatments are equal. If the null hypothesis is rejected in this instance, then the treatments differ. then, we go to step three.We will compare pairwise treatment with the help of t-statistic to find the best treatment.

To learn more about t-statistic visit:brainly.com/question/15236063

#SPJ4

5 0
1 year ago
Other questions:
  • Right angled triangle calc: find c, a=38, b=22.99999
    14·1 answer
  • Find all factors of13
    12·2 answers
  • Find cos \theta θ if \sin\theta=-\frac{7}{15} sin ⁡ θ = − 7 15 and falls in quadrant 4
    7·1 answer
  • n 1992, Jason bought a gallon of gas for $1.18. Yesterday, he bought a gallon of gas for $2.07. What is the percentage increase
    15·1 answer
  • What's 30 times 2 and then add 6?
    9·2 answers
  • Give the domain and range of the graph.
    5·1 answer
  • What are the advantages of being paid a salary instead of an hourly rate? What are the disadvantages of being paid a salary inst
    5·1 answer
  • Which statement is true about a trend line?
    10·1 answer
  • Type the correct answer in the box. Use numerals instead of words.
    13·2 answers
  • the radius of the circle shown to the right is 3 inches. What is the area of this circle, in square inches?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!