In a class of 27 students, the first student is given one marble the second student is given three marbles and the third students gets 5 marbles and so on until every student has been given a number of marbles. The total number of marbles given out is?

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

exactly you go it

step-by-step explanation:

if farmer matt works for 8 hours a day, how many days will it take him to completely plant 12 rows of crops? each batch of cookies needs 3/4 cups of sugar.

step-by-step explanation: