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let a = the age of the girl
let g = age of grandmother
:
Write an equation for each statement
:
"the age of a girl in months is equal to the age of her grandmother in years"
12a = g
:
if the differences between their ages is 66 years "
g - a = 66
replace g with 12a
12a - a = 66
11a = 66
a = 66/11
a = 6 yrs is the girls age
:
I'll let you find grandma's age .
let g = age of grandmother
:
Write an equation for each statement
:
"the age of a girl in months is equal to the age of her grandmother in years"
12a = g
:
if the differences between their ages is 66 years "
g - a = 66
replace g with 12a
12a - a = 66
11a = 66
a = 66/11
a = 6 yrs is the girls age
:
I'll let you find grandma's age .
manny71:
72 years then
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