Answer:
The son age is 10 years
And, his mother age be 40 years
Step-by-step explanation:
Given that
The mother is four times the age of her son
And, in 5 years, she will be three times as old as him
We need to find out the ages of both
Here we assume that the age of her son be x
So the mother age be 4x
Now in 5 years, her mother would be 3 times as old as his son
So,
4x + 5 = 3(x + 5)
4x + 5 = 3x + 15
x = 10
The son age is 10 years
And, his mother age be 40 years
B=1.25 so i think im not so good with this but i try if its wrong nvr listen to me
Answer:
x=8
Step-by-step explanation:
1.5x = 12
Divide each side by 1.5
1.5x/1.5 = 12/1.5
x =8
Answer:
Step-by-step explanation:
(a) Let x represent the length of the first side. Then the second side is (x+4) and the third side is (x+3). The perimeter is ...
x + (x+4) +(x+3) = 15
3x = 8 . . . . collect terms, subtract 7
x = 2 2/3 . . . . divide by 3
The third side is x+3 = 5 2/3 inches.
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(b) For this, we are told the second side is S, so we have ...
S = (x+4)
x = S -4 . . . . . subtract 4 to solve for x
Using this in our expression (in part (a)) for the third side, we have ...
third side = (x +3) = (S -4) +3
third side = S -1
Answer:
(i)= 45 KPH, (ii) = 251 miles
Step-by-step explanation:
'Per' essentially means divide. Thus, to find Kilometres per hour, divide 270 by 6= 45. The bus is travelling at 45 KPH.
Then, to see how far a nine hour trip would cover, distance = speed * time = 251 miles.
