Jeremy sold a total of 10 cookies and brownies. He sold each cookie for $1.25 and each brownie was sold for $2.50. Jeremy earned $20. How many cookies did he sell? A.4
B.5
C.6
D.8

A

Step-by-step explanation:

Total earned $20.00

10 cookies and brownies

6 brownies*2.50=15.00

4 cookies *1.25= 5.00

4 cookies

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

what is the answer to this