Which system of equations is equivalent to the following system? 2x + 4y = 14 4x + y = 20 2x + 4y = 14 −16x − 4y = −80 2x + 4y = 14 −4x + y = −20 4x + 8y = −28 4x + y = 20 −2x − 4y = 14 4x + y = 20

these sign is used to tell weather the number is greater or less than the number   <   or >     but this sign means its equal =    

hope this you and

step-by-step explanation:

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

answer: 8

step-by-step explanation: if you add the possibilities 5 different flavor and 3 different sizes 5+3=8

roots are from trees

step-by-step explanation: