Use the
necklac
joan is selling handmade bead necklaces
at a local art fair. she paid $240 to
reserve her booth. the cost of supplies
for each necklace averages $2. so, her
cost, y, for x necklaces is represented by
y = $240 + 2x. if she sells her necklaces
for $12, her revenue, y, is represented
by y = 12x.
ode
clear all
the solution of this system is the break-
even point, the point beyond which she
starts making a profit.

24 necklaces

Step-by-step explanation:

y=240+2x is the amount she spends

y=12x is the amount she makes

If the amount she spent = the amount she makes then she break even

240+2x=12x

240=12x-2x

240=10x

So x = 240/10=24 necklaces she needs to sell to break even

Answer is 24 necklaces

Hope this helps ;)

45 minutes or can be also 0.75 hours

Step-by-step explanation:

per hours refers to 1 hours.

40 km ---> 1 hours

1 km ---> 1/40 hours

30 km ---> { ( ) * 30} hours

          --> 0.75 hours

Conversion: 0.75 * 60 minutes

                   : 45 minutes