Here we can change the variables to real numbers, just to make things easier for us. For the sake of calculation, let’s say that x=10, y=6, and z=1.
So, y years from now, Yann will be x years old. If we plug in our randomly chosen numbers, we get that Yann will be 10 years old 6 years from now. This means that today, he would be x-y years old, or 10-6, so 4 years old today.
Next we ask how old he was z years ago, or in this case, 1 year ago. We know that if you’re 4 years old now, you were 3 years old last year. In other words, you’re 4-1 years old, or x-y-z years old.
Your answer is x-y-z.
If compounding annually, the student will need to put $6,208.85 into the account.
Answer:
The present age of Sam is 20 years .
Step-by-step explanation:
Given as :
Let The age of John = J years
Let The age of Sam = S years
∵ Sam is 12 years older than John
so, The age of Sam = 12 + The age of John
i.e S = 12 + J .....1
<u>Again</u>
Before 5 years ago
The age of Sam = 5 times age of John
So, (S - 5) = 5 × (J - 5)
Or, S - 5 = 5 J - 25
Or, 5 J - S = 25 - 5
Or, 5 J - S = 20 .........2
Solving eq 1 and eq 2
[5 J - (12 + J)] = 20
Or, 5 J - 12 - J = 20
Or, 4 J = 20 + 12
Or, 4 J = 32
∴ J = 
i.e J = 8 years
So, The age of John = J = 8 years
Put The value of J into eq 1
∵ S = 12 + J
So, S = 12 + 8
i.e S = 20 years
So, The present age of Sam = S = 20 years .
Hence, The present age of Sam is 20 years . Answer
Do 1/2 x 1/10 which equals 10/2. 10/2 is 5 gallons if u divide 10 divided by 2. So the unit rate is 5 gallons per minute.
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It was difficult but finally i get there where 4 womens because there where 29 mens 9 swiming 6 plaiyng squash the other 14 in the gym so
18-14=4 the number of womens in the gym