Lisa and julia are selling cookie dough for a school fundraiser. customers can buy packages of sugar cookie dough and packages of chocolate chip cookie dough. lisa sold 13 packages of sugar cookie dough and 6 packages of chocolate chip cookie dough for a total of $252. julia sold 8 packages of sugar cookie dough and 12 packages of chocolate chip cookie dough for a total of $288. find the cost of each of one package of sugar cookie dough and one package of chocolate chip cookie dough.
x = y =
equations:
1.
2.
solution:

x = sugar cookies dough

y = chocolate chips cookies

13x + 6y = 252

8x + 12y = 288

x = 12, y = 16

Step-by-step explanation:

x = sugar cookies dough

y = chocolate chips cookies

Equation

13x + 6y = 252 Equation 1

8x + 12y = 288 Equation 2

Equation 1 x 2

26x + 12y = 504 Equation 3

Equation 3 - Equation 2

18x = 216

x = 12

Sub x = 12 into Equation 1

13 (12) + 6y = 252

156 + 6y = 252

6y = 96

y = 16

answer: idk

step-by-step explanation:

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°