He is 7. 7x3 is 21 making him 3 times older. Also 7 +14 is 21.
The answer to the math probability question you are presenting above would be .475 or (47.5%). The value of 3 years multiplied by 1000 would equal to 3000, thus the person will listen to music 3000 hours a year - which is two standard deviations than the mean. Following the empirical rule, the answer would be .475.
Answer:
X = 18
Step-by-step explanation:
(x+3)+(x+3)+(3x-16) = 80
5x-10 = 80
5x = 80+10
5x = 90
x = 90/5
x = 18
hope that helped!
Answer:
I don't know, I'm so sorry but can you respond at my question?
Hello,
Let's assume f the age of the father,
s the age of the son.
<span>The age of a father is 2 less than 7 times the age of his son ==> f=7s-2 (1)
</span>
<span>In 3 years, the sum of their ages will be 52 ==>(f+3)+(s+3)=52 (2)
(2)==>f+s+6=52
==>f+s=46 (3)
(3) and (1) ==>7s-2+s=46
==>8s=48
==>s=6
f=46-6=40
</span>
