xxgissellexx
08.10.2019 •
Mathematics
Al is twice as old as judy. three years ago al was 3 times as old as judy. find their ages now
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Ответ:
Al is 12 yrs old
Judy is 6 yrs old
Step-by-step explanation:
After
Al=2units
Judy=1unit
Before(three yrs ago)
Al=2units-3
Judy=1unit-3
Since 3 times,
3units-9=2units-3
3units-9+3=2units
1unit=6
Ответ:
A linear relationship can be represented by
y = k*x
Which means that the increments or decrements of x, have a proportional gain that corresponds to the changes of y