What is the number whose square is 49
2 answers:
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Answer:
The money of Greg after five years is $80
The money of Sabrena after five years is $160,000
So,The money of Sabrena is more than Greg after five years .
Step-by-step explanation:
Given as :
Greg invested $20 and quadrupled his money in five years
Let the quadrupled money after five years = $x
∵ quadrupled means the money becomes 4 times of previous
So, x = $20 × 4
i.e x = $80
So, The money of Greg after five years is $80
Again
Sabrena invested $20 and after five years money becomes 20 to the fourth power
Let the money after 20 to the fourth power = $y
So, y =
i.e y = 160,000
So, The money of Sabrena after five years is $160,000
∵ Sabrena money is more than Greg money
Hence, The money of Sabrena is more after five years . Answer