Suppose that P dollars in principal is invested in an account earning 5.3% interest compounded continuously. At the end of 3 yr, the amount in the account has earned $1,378.70 in interest. Find the original principal. Round to the nearest dollar.

i believe the answer is letter c) 8

step-by-step explanation:

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.

1.30

step-by-step explanation: