There were three people who went to sleep, Thirty yuan a night.

The three men each contributed 10 yuan to scrape together 30 yuan and gave it to the boss.

Then the boss said that today's discount as long as 25 yuan is enough,

Took out five dollars and ordered the waiter to return it to them,

The waiter secretly hid two dollars,

And then,

He divided the remaining three dollars among the three men,

Everyone gets 1 dollar.

In this way,

Each of you paid 10 dollars at the beginning,

And now I give back 1 dollar,

10-1 = 9,

It only cost 9 yuan per person,

Nine yuan each for three people.

3 X 9 = $27 + $2 hidden by the waiter = $29,

Where did the dollar go??

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

How many times larger is 6 × 10^12 than 2 × 10^7? a. 30,000 b. 3,000 c. 3,000,000 d. 300,000

Suppose that a customer is purchasing a car. he conducts an experiment in which he puts 10 gallons of gas in the car and drives it until it runs out of gas. he conducts this experiment 15 times on each car and records the number of miles driven. full data set car 1 238238 216216 205205 212212 240240 274274 297297 252252 260260 247247 257257 243243 296296 243243 290290 car 2 245245 204204 215215 209209 251251 165165 221221 295295 172172 287287 268268 305305 320320 260260 297297 describe each data set, that is determine the shape, center, and spread. sample mean for car 1 x overbar equalsx=216216 mi / 10 gal (type an integer or decimal rounded to one decimal place as needed.) sample mean for car 2 x overbar equalsx=209209 mi / 10 gal (type an integer or decimal rounded to one decimal place as needed.)