Chase and sara went to the candy store. chase bought 5 pieces of fudge and 3 pieces of bubble gum for a total of $5.70. sara bought 2 pieces of fudge and 10 pieces of bubble gum for a total of $3.60. what is the cost for a piece of bubblegum?

bubble gum costs $0.15 and fudge costs $1.05

Step-by-step explanation:

you want to set up a systems of equation.

call cost of fudge "f' and call cost of bubble gum "b". Chase's purchase proves 5.70=5f+3b. Sara's purchase tells us that 3.60=2f+10b. you can solve with substitution or elimination

v v cj van config k tbs eng r.c r.c fcb fb gb frfr

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204