There are 140 people in a singing competition. a. write an expression for the number of people after x rounds. expression: b. how many people compete in the ninth round? people question 2 which best explains your reasoning? there are 20 people left after the eighth round. so, 20 people compete in the ninth round. when x=9,140−15x=5. so, 5 people compete in the ninth round. there are 20 people left after the eighth round and 20−15=5. so, 5 people compete in the ninth round. there are 20 people left after the eighth round. so, 35 people compete in the ninth round.

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

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours

look at the picture i have filled out a table for it. hope this .