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
bija089 [108]
3 years ago
15

starting at home, Omar traveled uphill to the gift store for 30 minutes at just 10mph. He then travelled back home along the sam

e path downhill at a speed of 30mph. What is his average speed for the entire trip to the gift store and back?
Mathematics
2 answers:
SashulF [63]3 years ago
6 0

Answer:

average speed for the entire trip is 15 mph

Step-by-step explanation:

Let x be the uphill speed and y be the downhill speed.

We have been given that

Speed of Omar in uphill to reach gift store = x =10 mph

Speed of Omar in downhill to reach his home = y = 30 mph

We know the formula for average speed for the entire trip

\text{Average speed }=\frac{2xy}{x+y}\\\\=\frac{2\times 10\times 30}{10+30}\\\\=\frac{600}{40}\\\\=15

Therefore, average speed is 15 mph


sweet-ann [11.9K]3 years ago
3 0
We know, Speed = Distance / time
Let, the distance = d
Time for first trip = d/10
Time for second trip = d/30

Total time = d/10 + d/30 = 4d/30

Now, Average speed = total distance / total time
s = 2d / 4d / 30
s = 2d*30 / 4d
s = 30/2
s = 15

In short, Your Answer would be: 15 mph

Hope this helps!
You might be interested in
The measure of c is .
mina [271]

Answer:

c^2=a^2+b^2

c^2=6^2+8^2

c^2=36+64

c=10

but still do not understand why peoples are asking that basic

4 0
2 years ago
Read 2 more answers
Horizon Building Company is constructing a new office building. They have 5,176 ceiling tiles. The office building will have nin
slavikrds [6]

Answer:575 and 1 extra tile

Step-by-step explanation:if the total tiles is 5,176 which will be used in 9 floors .We will divide the total tiles by the floors .Therefore we will get 5176 /9 =575.111

Therefore each floor will have 575 tiles

To get the remaining tiles

575*9 = 5175 which gives us a remainder of 1 tile when you subtract the total 5176 -5175 =1

5 0
3 years ago
Please help with these math questions part 2
NikAS [45]
5).
and
6).
The volume of a sphere is

               (4/3) (pi) (radius)³ .

In #5, the 'pi' is already there next to the answer window.
You just have to come up with the (4/3)(radius³).

Remember that the radius = 1/2 of the diameter.

7).  The volume of a cylinder is

                         (pi) (radius²) (height) .

Divide the juice in the container by the volume of one can,
to get the number of cans he can fill.

8).  The volume of a cone is

                     (1/3) (pi) (radius of the round bottom)² (height) .

He starts with a small cone, he then adds clay to it to make it higher.
The question is:  How much clay does he ADD to the short one,
to make the bigger one ?

Use the formula to find the volume of the short one.
Use the formula again to find the volume of the bigger one.
Then SUBTRACT the smaller volume from the bigger volume.
THAT's how much clay he has to ADD.

Notice that the new built-up cone has the same radius
but more height than the first cone.
_______________________________________

Don't worry if you don't understand this.

The answer will be this number:

 (1/3) (pi) (radius²) (height of the big one minus height of the small one).
6 0
3 years ago
X + y = 7, what is the value of 2x + 2y -2?<br>btw please hurry, thx &lt;3
stira [4]

Answer:

The answer is 12 because 2x is just 8 and 2y is just 6 so add that and get 14 then subtract 2.

Step-by-step explanation:

5 0
2 years ago
an isosceles triangle contains two equal angles. Each of these angles is 25 degrees larger than twice the smallest angle. What a
Helga [31]
Well, the sum of all internal angles in a triangle, isosceles or whatever else, is always 180°, so the sum of all those three folks, will be 180 then

so.. hmmm let's say the smallest angle is "a" units

twice that is, 2*a, or 2a
25 larger than that? is well 2a + 25

so... the other two twin angles, are 2a+25 each

thus   a + (2a + 25) + (2a + 25) = 180

solve for "a" to find the smalles one

what about the twins? well, each is 2a + 25
5 0
3 years ago
Other questions:
  • Top five best-selling movies are finding dory, shrek 2, lion king, toy story 3, and frozen. Create a list of the possibilities f
    6·1 answer
  • How to do part a &amp; b
    14·2 answers
  • I need to solve for b but I don't know how
    10·1 answer
  • Find the product.
    15·2 answers
  • In a survey, 15 high school students said they could drive
    14·2 answers
  • Which of the following exponential regression equations best fits the data shown below?
    13·2 answers
  • Estimate. 3 × 92 What is This???
    9·1 answer
  • -9x-5x=20<br> Please solve for x!
    12·1 answer
  • Mrs.bain earns 30,483 per year how money does she earn in one month my entire math grade depends on this one answer please help
    10·1 answer
  • I'LL GIVE A BRAINLIEST <br>find the three inequalities that define the unshaded region, R​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!