Revenue for selling x widgets is r=40x. Cost to produce widgets is c=30x+800. How many need to sell to break even?

The number of widgets to sell to break-even is:

Step-by-step explanation:

Remember that the break-even is the point where the revenues of the sales for a product or services is the same as the cost to produce them, now we have two formulas:

Where r is the revenue for selling x widgets, and:

Where c is the cost to produce widgets, taking into account the definition above, we can match:

or

Now we clear the variable x:

Now we know that when the enterprise sells 80 widgets, it will cover the cost to produce it with the revenues.

i think this could be a possible answer (1 / 84) -1

good luck! : d

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

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