Solving a Mixture Problem
Bruce wants to make 50 ml of an alcohol solution with a 12% concentration. He has a 10% alcohol solution
15% alcohol solution. The equation 0.10x + 0.15(50 - x) = 0.12(50) can be used to find the amount of 10% al
solution Bruce should use
How much of the 10% alcohol solution should Bruce use?
How much of the 15% alcohol solution should Bruce use?
ml
SAdivity

On a piece of paper graph f(x)=5•(0.4)^x

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)