SOLUTION: james says to his sister emma " i am six years older than you. two years from now i will be twice as old as you."
A. write an expression for james's age today
B. write an expr
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A. write an expression for james's age today
B. write an expr
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Question 269468: james says to his sister emma " i am six years older than you. two years from now i will be twice as old as you."
A. write an expression for james's age today
B. write an expression for emma's age in two years
C. write an expression for james's age in two years
D. in two years james will be twice as old as emma. explain why th equation x+8=2(x+2)represents this fact.
solve the equation in part d. How old is james today. how old is emma today Answer by drk(1908) (Show Source):
You can put this solution on YOUR website! Let J = james and E = Emma
part (A) = J
part (B) = E + 2
part (C) = J + 2
part (D) =
From above
(i) J = E + 6
(ii) J + 2 = 2*(E + 2)
substituting (i) into (ii) we get
(iii) E + 6 + 2 = 2(E + 2)
simplify to get
(iv) E + 8 = 2(E+2)
solving we get
(v) E + 8 = 2E + 4
subtracting E we get
(vi) 8 = E + 4
subtracting 4 we get
(vii) E = 4
This tells us that James = 10
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