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∙ 11y agoSuppose your age now is Y
So 3*(Y + 3) + 4*(Y + 4) = 8*Y
That is, 3Y + 9 + 4Y + 16 = 8Y
or 7Y + 25 = 8Y
so that Y = 25
In two years time you will be Y + 2 = 27
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∙ 11y agoPenny is five years old. In 10 years she will be 15, which is three times her current age.
5(x + 5) + 6(x + 6) = 12x5x + 25 + 6x + 36 = 12x11x + 61 = 12x61 = 21x - 11xx = 61i.e. you are currently 61. In two years, you would be 63.
Let a represent the current age. From the statement of the problem, a + 5 = 3(a - 3); a + 5 = 3a -9; 14 = 2a; a = 7.
Roger's age is 4.ExplanationRoger is 4 years old. That's two times the age of his sister, who is 2 years old.Last year, Roger was 3 years old, and his sister was 1; Therefore making Roger 3 times his sister's age.
Turning this into equations we get :E = current age of EmilyS = current age of SamanthaE = 3S (Currently, Emily is 3 times as old as Samantha)E + 6 = 2*(S + 6) (In 6 years, Emily will be twice as old as Samantha)Solving for E and S, we get that cuurently, Samantha is 6 and Emily is 18(6 * 3 = 18). and in 6 years Samantha would be 12 and Emily would be 24, making Emily twice as old as Samantha (12 * 2 = 24)
Penny is five years old. In 10 years she will be 15, which is three times her current age.
5(x + 5) + 6(x + 6) = 12x5x + 25 + 6x + 36 = 12x11x + 61 = 12x61 = 21x - 11xx = 61i.e. you are currently 61. In two years, you would be 63.
3
The idea is to add 30 to your current age.
1021 seconds = 31,688,087,810,000 years (rounded)That's something like 2,300 times the current estimated age of the universe.
Let a represent the current age. From the statement of the problem, a + 5 = 3(a - 3); a + 5 = 3a -9; 14 = 2a; a = 7.
Chloe is 15 3 x 15 = 45 - 9 = 36 (moms current age) 15 +5 = 20 (Chloe's age in 5 years) 36 + 5 = 41 (mom's age in five years)
The current projections of men and women more than sixty years of age is about 20 percent.
My prediction is that it will decay after a half-life of more than 10^30 years. That is more than a quintillion times the current age of the universe.
18 years old
33
50 years old