tangia
02.07.2019 •
Mathematics
Amanda’s dad is twice as old as she is today. the sum of their ages is 66. find the ages of amanda and her dad.
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Ответ:
Let amanda's age be x and her dad's age be y.
Amanda’s dad is twice as old as she, therefore 2x=y
The sum of their ages is 66, therefore x+y=66
x+y=66
2x=y,
substitute.
2x+x=66
3x=66
Divide.
x=22.
plug it back in, 22+y=66, y=44.
Amanda's age is 22 and her dad's age is 44.
Ответ:
4. what's revealed about the girls character is that they're all followers and will be anything to please Abigail.