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
Aleonysh [2.5K]
3 years ago
8

Greg drove at a constant speed in a rainstorm for 28 miles. He took a​ break, and the rain stopped He then drove 250 miles at a

speed that was 10 miles per hour faster than his previous speed. If he drove for 12 ​hours, find the​ car's speed for each part of the trip.
Mathematics
2 answers:
daser333 [38]3 years ago
7 0
He grove 25 miles per an hour
LenaWriter [7]3 years ago
4 0
Since it mentions about the constant, then the answer would be 25 miles per hour
You might be interested in
Which function has the greater maximum value: f(x) = -2x2 + 8x-1, or g(x),
aleksklad [387]

Answer:

It’s f(x)

Step-by-step explanation:

4 0
2 years ago
A savings and loan association needs information concerning the checking account balances of its local customers. A random sampl
Marina86 [1]

Answer:

The 99% confidence interval for the true mean checking account balance for local customers is ($439.29, $888.99).

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 14 - 1 = 13

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 13 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 3.0123

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 3.0123\frac{279.29}{\sqrt{14}} = 224.85

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 664.14 - 224.85 = $439.29

The upper end of the interval is the sample mean added to M. So it is 664.14 + 224.85 = $888.99.

The 99% confidence interval for the true mean checking account balance for local customers is ($439.29, $888.99).

4 0
3 years ago
a snail moves at a speed of 2.394 inches per minute. if the snail keeps moving at this rate about how many inches will it travel
igor_vitrenko [27]

Answer:

17.928666

Step-by-step explanation:

2.394*7.489

3 0
3 years ago
-34x+6=-28<br> I need to learn how to solve for x
Dimas [21]

Answer:

x=1

Step-by-step explanation:

-34x+6=-28

       -6     -6

-34x=-34

-34     -34

x=1

Subtract 6 from both sides. on the left the 6 will be canceled out and on the right -28-6= -34

Than you divide -34 on both sides on the left the -34 will be canceled and on the right -34 divided bt-34 is positive 1. So x equals 1.

8 0
3 years ago
Read 2 more answers
EZ QUESTION:
masha68 [24]

Answer:

first 1 second one x

Step-by-step explanation:

And you are nor R-tarted

8 0
3 years ago
Other questions:
  • Llen's score in a video game was changed by −50 points because he missed some targets. He got −10 points for each missed target.
    15·1 answer
  • Given: x - 5 &gt; -2. <br><br> Choose the solution set.
    14·2 answers
  • A particular manufacturing design requires a shaft with a diameter between 23.92 and 24.018 mm. The manufacturing process yields
    6·1 answer
  • The light from a lamp casts a shadow of a man standing 10 feet away from the lamppost. the shadow is 7 feet long. the angle of e
    13·2 answers
  • Solve: Factor the following polynomial completely -9x^2-30x-25
    12·2 answers
  • Nola purchased 2.5 pounds of cheese for $10.50. Her mother purchased 3 pounds of the same cheese for $12.60. The cost of cheese
    8·1 answer
  • Find the lowest common multiple of 28 and 210
    6·1 answer
  • Simplify <br> square roots.
    13·1 answer
  • Please help it's greatly apprecatied
    14·1 answer
  • What is the sum of the 14th square number and the 1st cube number?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!