Translate mathematical word sentence into written expression: a/2=9
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Let the age of Jay be x years, so age of Jay's father is 2x years .
After 20 years,
Jay's age will be
And Jay's father age will be
But at that time, jay's age will be
So we have
Cross multiplication
Therefore Jay's age is 20 years and Jay's Father's age is 40 years .
Given:
saves 150 per month.
3% per annum ; 0.0025% per month.
compounded interest means that every interest earned per month also earns interest.
2 years = 24 months.
Pls. see attachment for my answer.
saves 150 per month.
3% per annum ; 0.0025% per month.
compounded interest means that every interest earned per month also earns interest.
2 years = 24 months.
Pls. see attachment for my answer.