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ololo11 [35]
3 years ago
7

A virus has infected 400 people in the town and is spreading to 25% more people each day.

Mathematics
1 answer:
NeTakaya3 years ago
8 0

Answer:

N = 400(1.25^t); 3725

Step-by-step explanation:

25% more is 125% of the previous, which is 1.25

N = 400(1.25^t)

t = 10

N = 100(1.25^10)

N = 3725.290298

Around 3725 people

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It costs $3.75 for 5lbs of food for your puppy. How much is it for 1lb
alex41 [277]
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3 years ago
in toby's yard there are 4 petunias for every 7 rhododendrons toby counts a total of 28 rhododendrons in his yard how many petun
mamaluj [8]

Answer:

16 petunias

Step-by-step explanation:

28/7  =  x/4

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3 years ago
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Pani-rosa [81]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
An airplane flying with the wind can cover a certain distance in 2 hours. The return trip against the wind takes 2.5 hours. Find
Anna [14]

Answer:

Wind speed = 30 mph

Plane speed = 270 mph

Step-by-step explanation:

Given that :

Distance = 600 miles

Let speed of airplane = a ; speed of wind = b

Net speed ; with wind = a + b

Net speed against wind = a - b

Time taken with wind = 2 hours

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Recall :

Speed = distance / time ; distance = speed * time

(a + b) * 2 = (a - b) * 2.5

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300 - b - b = 240

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Plane speed = 270 mph

4 0
2 years ago
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