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alisha [4.7K]
1 year ago
8

Martha and sarah leave block p and q towards q and p respectively simultaneously and travel in the same route. After meeting eac

h other on the way, sarah takes 3 hours to reach her destination, while martha takes 5 hours to reach her destination. If the speed of sarah is 40 km/hr, what is the average speed of martha and sarah?.
Mathematics
1 answer:
olga_2 [115]1 year ago
5 0

The average speed of Martha and Sarah is 32 km/h.

We need to know about the speed to solve this problem. Speed can be determined as the distance traveled divided by time. It can be written as

v = s / t

where v is speed, s is distance and t is time.

From the question above, we know that:

t sarah = 3 hours

t martha = 5 hours

v sarah = 40 km/h

By using the speed equation, we get the distance

vsarah = s / tsarah

40 = s/3

s = 120 km

Find Martha's speed

vmartha = s / tmartha

vmartha = 120 / 5

vmartha = 24 km/h

Find average speed

v = (vsarah + vmartha)/2

v = (40 + 24) / 2

v = 32 km/h

Hence, the average speed of Martha and Sarah is 32 km/h.

Find more on speed at: brainly.com/question/6504879

#SPJ4

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What is the relationship between area in the scale drawing and area on the on the actual tennis court if the scale is 1in.: 5ft.
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Given:

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Width of the scale = 7.2 in.

Scale of drawing = 1 in. : 5ft.

To find:

The ratio of area of the actual court to the area of the drawing (as a unit rate).

And to check whether it is the same as the ratio of length of the actual court to the length of the drawing.

Step-by-step explanation:

We have,

1 in. = 5ft.

Now, using this scale we get

15.6 in. = (15.6 × 5) ft =78 ft.

7.2 in. = (7.2 × 5) ft = 36 ft.

So, the actual length and width of tennis court are 78 ft and 36 ft respectively.

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Area=length\times width

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The area of drawing is

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Now, ratio of area of the actual court to the area of the drawing (as a unit rate) is

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Ratio of area is 25:1 and ratio of length is 5:1 both area not same.

Therefore, the ratio of area of the actual court to the area of the drawing (as a unit rate) is 25:1.

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3 years ago
(2a-16)+(3a+18)=17 what is a?
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Hope this is the right answer .

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There are 5 oranges, three apples, 12 grapes, and 2 avocados in the fruit basket of Ms. Canton's refrigerator. Write a ratio of
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Answer:

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Step-by-step explanation:

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