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Sally has a job selling computers and is given two payment options. Option A pays for her weekly wage of $120 plus $4 for each computer sold. Option B pays her weekly wage of $90 plus $12 for each computer sold. How many computers must she sell to make money with payment Option B?

step by step explanation please.

Make an equation and inequality.

Thanks

Respuesta :

Answer:

about 4

Step-by-step explanation:

set X as the number of computers that Sally sold

Option A :  

she will make 120+4X ($)

Option B :

she will make 90+12X ($)

How many computers must she sell to make money with payment Option B?

120+4X = 90+12X

=> X = 3,75 ( about 4 )