Question 168227
Daily cost is $1,000 + $1.50x

ie amount to run factory for the day is $1,000 (fixed cost) and x is the number of cups made costing $$1.50 in materials

If Total = $2,800

then $2,800 = $1,000 + $1.50x

subtract $1,000 to get the x term alone to give

$2,800 - $1,000 = $1.50x

$1,800 = $1.50x

now divide both sides by $1.50 to get x on its own

$1,800/$1.50 = x

so x = # cups made to produce $2,800 daily cost is 1200 cups

Not sure what the 2nd part is asking

but if they want the mugs to be $2.00 each then 

If Total = $2,800

then $2,800 = $1,000 + $2.00x

subtract $1,000 to get the x term alone to give

$2,800 - $1,000 = $2.00x

$1,800 = $2.00x

now divide both sides by $2.00 to get x on its own

$1,800/$2.00 = x

so x = # cups made to produce $2,800 daily cost is 900 cups