SOLUTION: The sum of Jarod's age and Kayla's age is 21. Kayla is 5 years older than Jarod. How old are Kayla and Jarrod. Did x + 5=21. 21-5= 16. Still don't know how old anyone is.

Question 175109This question is from textbook harcourt math
: The sum of Jarod's age and Kayla's age is 21. Kayla is 5 years older than Jarod. How old are Kayla and Jarrod. Did x + 5=21. 21-5= 16. Still don't know how old anyone is. This question is from textbook harcourt math

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Let j = Jarod's age now
Let k = Kayla's age now
:
Write an equation for each sentence:
"The sum of Jarod's age and Kayla's age is 21."
j + k = 21
;
" Kayla is 5 years older than Jarod."
k = j + 5
:
How old are Kayla and Jarrod.
:
from the above equation, take (j+5) and substitute it for k in the 1st equation
j + (j+5) = 21
2j = 21 - 5
2j = 16
j =
j = 8 yrs is Jerod's age
:
Use the 2nd equation to find k
:
Check solutions in the 1st equation
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