One hundred dollars is invested in 90 days. At the end of the term, the investment is worth $120. Find the growth rate per day. I do NOT get this... My equation was; 120=100 times b^90. Using the formula y= a times b^x Is that equation right, and how do I solve it? Even if it's not right, just PLEAS...
The thing is is that they're teaching me stuff with all those different equations, my teacher taught us y=a*b^x and says we should be able to use that to figure out this problem. I'm SUPER confused. Lol
A radioactive element has a count of 120. Four weeks later, the count is 104. Find the daily rate of decay. Another one I need help with... A petri dish contains a bacteria count of 6000. Two days ago, the count was 9720. What will the count be 5 days from now if the daily rate remains the same?? I ...