torrezflor12445678 torrezflor12445678

15-07-2020
Mathematics

contestada

I need help plz someone help me solved this problem I need help ASAP! I will mark you as brainiest!

I need help plz someone help me solved this problem I need help ASAP I will mark you as brainiest class=

Respuesta :

15-07-2020

Step-by-step explanation:

P= R - C = -0,5x^2 + 70x -2100= 300

P=-0,5x^2 +70x -2400=-0,5(x^2 -140x +4800)=-0,5(x^2- 80x -60x +4800)=-0,5(x-60)(x-80)=0

so x =60 or x=80

Answer Link

patelpriyanka6012 patelpriyanka6012

15-07-2020

Answer:

Total cost is 123 items selled

Answer Link

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