Question

Which of the following is the solution to the equation aqrt 5 ^ 8n = 125(n + 3) ?

Answer 1

sorry i wrote it wrong: Which of the following is the solution to the equation sqrt 5 ^ 8n = 125 ^ (n + 3) ?

Answer 2

aqrt wann to be sqrt

Answer 3

125 is 5 on exponent 3

Answer 4

yes..do you know how to find the answer or what the answer is?

Answer 5

than 8n=3(n+3)
8n=3n+9
5n=9
n=9/5

Answer 6

thats the right answer??

Answer 7

yes check it please you too

Answer 8

i will! do you mind writing your work out? doesnt have to be long

Answer 9

so for getting one equality of two partes of equation than you need to do like in this case because we have there the number 5 on differents exponents
- so we know again that 5 on exponent x will be equal with 5 on exponent y if x=y
- so than if you check i have maked in base of 5 these two parts - left and right - and there i have got that 8n=3(n+3)
- so after this you need to solve this equation for n and will get n= 9/5

Answer 10

you can prove it like exponent there is 8(9/5) = 125(9/5 +3)

Answer 11

these two parts need to be equales

Answer 12

thanks so much!! do you know how to do this last one? The number of milligrams of a drug that remains in a patient’s system after t hours is given by the function A(t) = Iert. Don was given 300 milligrams of medicine which leaves his bloodstream at a rate of 20%. How much of the medicine remains in his system after 4 hours?

Answer 13

sorry

good luck bye

Answer 14

do u know how