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
nekit [7.7K]
3 years ago
12

Annette drives her car 105 miles and has a mean of a certain speed. if the mean speed had been 4mph more, she could have travele

d 119 miles in the same length of time. what was her mean speed?
Mathematics
1 answer:
ollegr [7]3 years ago
3 0
Let the mean speed be x mi/hr
Time taken to travel will be:
distance/ speed
thus:
105/x=119/(x+4)
solving for x we get:
105(x+4)=119x
105x+420=119x
119x-105x=420
x=30 mi/hr
Thus the mean speed is 30 mi/hr
You might be interested in
Use the Remainder Theorem to find the remainder for (4x^3+4x^2+2x+3)/(x-1) and state whether or not the binomial is a factor of
Gnesinka [82]

Answer:

The remainder = 13.

Step-by-step explanation:

By the Remainder Theorem the remainder when the function is divided by

x - 1 is f(1).

f(1) = 4(1)^3 + 4(1)^2 + 2(1) + 3

=  4 + 4 + 2 + 3

= 13.

So x - 1 is not a factor of f(x).

If it was a factor the remainder would be 0.

5 0
3 years ago
Read 2 more answers
Which diagram shows parallel lines cut by a transversal?
Arada [10]
Only the third model shows parallel lines cut by a transversal. 

We can solve this problem by using some properties that parallel lines cut by a transversal have. First of all, corresponding angles are congruent, and since the angles in figure 1 are corresponding but not congruent, that means that figure one is out. 

In addition, in figure two, alternate exterior and interior angles of parallel lines intersected by a transversal are congruent, so since they are not in the picture, that means that this figure is also out. 

Figure three is correct because since those are same side interior angles, they need to be supplementary for those to be two parallel lines intersected by a transversal. Since they do, in fact, add up to 180°, that means that the answer is figure three. 
5 0
3 years ago
Read 2 more answers
Please help ASAP! THANKS<br>WILL MARK BRAINLIEST
lara31 [8.8K]

Answer:

square root of 1

Step-by-step explanation:

Try it.

8 0
3 years ago
How many pounds are l.25 kilograms????
Anon25 [30]
2.755778 lbs or round to 2.76 or 3 depending on the question
4 0
3 years ago
Read 2 more answers
A hot air balloon is 910 feet above sea level. It is rising at a rate of 4 feet fee second. How high is the hot air balloon afte
nalin [4]

Answer:

1230

Step-by-step explanation:

80 x 4 = 320

320 + 910 = 1230

5 0
2 years ago
Other questions:
  • The probability density function for random variable W is given as follows: Let x be the 100pth percentile of W and y be the 100
    13·1 answer
  • If the area of a park is exactly halfway between 2.4 and 2.5 acres, what I think area of the park
    14·2 answers
  • Graph the inequality.<br> y&gt; -5x+1
    9·1 answer
  • Triangle XYZ is rotated 90° counterclockwise about the origin.
    7·2 answers
  • Help please this is my last question left
    15·1 answer
  • A palindrome is a number or a word that is the same in the two directions: left to right and vice versa. Example of palindromes:
    9·1 answer
  • Original cost $7.50 markup % 50%
    13·1 answer
  • The recipe calls for 2 2/4 but jams only have 1/4 how many cups do jams need to measure out 2 2/4 cups of raisins
    11·1 answer
  • Please help i'm stuck
    7·1 answer
  • the art teacher had a huge pack of pipe cleaners he used 177 with the entire 4th grade he took leftover pipe cleaners and create
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!