Ruben bought a DVD recorder for 240 $. Now, it is on sale for 180 $. Find the percentage of change in the price

Step-by-step explanation:

orginal :$240

new/sale: $180

Percentage of Change:

(V2−V1)|V1|×100

=(180−240)|240|×100

=−60240×100

=−0.25×100

=−25%change

=25%decrease

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2