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umka2103 [35]
3 years ago
10

7 years ago father was 7 times as old as his son was. three years hence, he will be three times as old as his son find their pre

sent ages.​
Mathematics
1 answer:
EastWind [94]3 years ago
8 0

Answer:

son = 10 , father = 40

Step-by-step explanation:

Let Five years ago the age of son be x years and age of father be 7x years

Present age of son =x+5

Present age of father =7x+5

5 years later their age will (x+10) and (7x+10)

∴7x+10=3(x+10)

7x−3x=20

4x=20

x=5

So, the present age of son=x+5=5+5=10years

and the present age of father=7x+5=35+5=40years

hope it helps you

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At the time the cannonball reaches the ground, the vertical height of the cannonball from the ground is 0, i.e. h = 0.

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Suppose you take a simple random sample of size n=175 from the population of Reese's Pieces, still assuming that 45% of this pop
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Answer:

The  probability is  P(0.35

Step-by-step explanation:

From the question we are told that

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   The population proportion is  p =  0.45

   

Generally the mean of the sampling distribution is  \mu_{x} =  0.45

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Generally the probability of  that the sample proportion of orange candies will be between 0.35 and  0.55 is  

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=> P(0.35

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