missayers172
04.03.2021 •
Mathematics
Miss Parker invested a certain amount of money at 9.2% interest and another amount, $700 more than the first, at 10.4%. If the total annual interest is $425.60, how much money is in each investment
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Ответ:
$1800 and $2500
Step-by-step explanation:
Let he invested a total of $P and$( P+700) in each investment so according to question
9.2*P*1+10.4*(P+700)*1= 42560
19.6P+ 7280= 42560
19.6P = 42560-7280= 35280
P=$ 1800
So, he invested $1800 and $2500 respectively.
Ответ:
part b is c
part c is d
part d is a
part e is b