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marishachu [46]
3 years ago
14

1p

Mathematics
1 answer:
goblinko [34]3 years ago
6 0

Answer:

O 81 km per hour

Explanation

Given parameters:

Number of days traveled  = 3 days

Distance covered on the first day  = 1080km

Time of travel  = 10hrs

Rate of travel  = 108km/hr

Time of travel on second day = 12hrs

Rate of travel  = 90km/hr

Time of travel on third day  = 18hrs

Rate of travel  = 60km/hr

Unknown

Average speed  = ?

To find the average speed, we sum the distances and divide by the sum of the time.

  Average speed  = \frac{Total distance}{total time}

we do not know the second and third distances;

  Distance  = speed x time

D2  = 90 x 12 = 1080km

D3  = 60 x 18  = 1080km

    Now;

  Average speed  = \frac{1080 + 1080 + 1080 }{10 + 12 + 18 }

 

 Average speed  = \frac{3240}{40}   = 81km/hr

The average speed is 81km/hr

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Someone plz help to become brainliest and get points !! :) plz answer truthfully
Ilia_Sergeevich [38]

Total number of cubic inches of cheese sauce in container = Volume of cylinder = \pi .8^2.7

Option A is correct.

Step-by-step explanation:

The diameter of cylinder = 16 inches

The height of cylinder = 7 inches

Total number of cubic inches of cheese sauce in container = Volume of cylinder = ?

The formula used to find Volume of cylinder is:

Volume=\pi r^2h

We are given diameter of cylinder while we need radius according to formula.

So, radius = diameter/2

radius = 16/2

radius = 8

Putting values and finding volume:

Volume=\pi .8^2.7

So, Total number of cubic inches of cheese sauce in container = Volume of cylinder = \pi .8^2.7

Option A is correct.

Keywords: Volume of cylinder

Learn more about Volume of cylinder at:

  • brainly.com/question/12497249
  • brainly.com/question/6443737

#learnwithBrainly

8 0
3 years ago
What is the sum of 4.5 × 10^8 and 8.9 × 10^8?
Andrei [34K]

Answer:

i think that the correct answer is a

Step-by-step explanation:

4 0
3 years ago
Look at each equation and possible solution. Is the solution correct? Select Yes or No for each equation.
oksano4ka [1.4K]

Answer:

yes

Step-by-step explanation:

7 0
3 years ago
PLEASE HELP!! URGENT!! i will mark brainliest if its right!! In the figure below, ∠DEC ≅ ∠DCE, ∠B ≅ ∠F, and DF ≅ BD. Point C is
zvonat [6]

Answer:

See below.

Step-by-step explanation:

This is how you prove it.

<B and <F are given as congruent.

This is 1 pair of congruent angles for triangles ABC and GFE.

<DEC and <DCE are given as congruent.

Using vertical angles and substitution of transitivity of congruence of angles, show that angles ACB and GEF are congruent.

This is 1 pair of congruent angles for triangles ABC and GFE.

Now you need another side to do either AAS or ASA.

Look at triangle DCE. Using the fact that angles DEC and DCE are congruent, opposite sides are congruent, so segments DC and DE are congruent. You are told segments DF and BD are congruent. Using segment addition postulate and substitution, show that segments CB and EF are congruent.

Now you have 1 pair of included sides congruent ABC and GFE.

Now using ASA, you prove triangles ABC and GFE congruent.

7 0
3 years ago
Is 5:6 And 45:54 is equivalent or not equivalent
Anon25 [30]
Yes they r equivalent
4 0
3 years ago
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