Solve the problem by setting an equation.
To manage a purifier, three companies intervene. The cost of the works is 48,000 euros, to be divided into three companies: the Rossi company, the Verdi company and the Viola company. The share of the Viola company is three times that of the Rossi company, while the share of the Verdi company is four times that of the Rossi company. What is the share of the three companies?

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck