Ms. kitts works at a music store. last week she sold 6 more than 3 times the number of cds that she sold this week. ms. kitts sold a total of 110 cds over the 2 weeks. which system of equations can be used to find x, the number of cds she sold last week, and y, the number of cds she sold this week?

x - 3y = 6 and x + y = 110 represents the system of equations used to find x, the number of CDs she sold last week, and y, the number of CDs she sold this week

number of CDs Kitts sold last week "x" is 84 and number of CDs she sold this week "y" is 26

Let "x" be the number of CDs Kitts sold last week

Let "y" be the number of CDs she sold this week

Given that Last week she sold 6 more than 3 times the number of CDs that she sold this week

Number of CDs Kitts sold last week = 6 + 3(number of CDs that she sold this week)

x = 6 + 3y eqn 1

x - 3y = 6 eqn 2

Given that Ms. Kitts sold a total of 110 CDs over the 2 weeks

Number of CDs Kitts sold last week + number of CDs she sold this week = 110

x + y = 110 eqn 3

Thus eqn 2 and eqn 3 represents the system of equations used to find x, the number of CDs she sold last week, and y, the number of CDs she sold this week

Let us solve the above equations to find values of "x" and "y"

Substitute eqn 1 in eqn 3

6 + 3y + y = 110

6 + 4y = 110

4y = 104

From eqn 3,

x + 26 = 110

x = 110 - 26 = 84

Thus number of CDs Kitts sold last week = x = 84

Number of CDs she sold this week = y = 26

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.

answer: 4 (:

step-by-step explanation: