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MCC7.EE.4 – (DOK 1) Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities. Solve word problems leading to equations of the form px+q=r and p(x+q)=r, where p, q, and r are specific rational numbers. Solve equations of these forms fluently. Compare an algebraic solution to an arithmetic solution, identifying the sequence of the operations used in each approach. Solve word problems leading to inequalities of the form px+q>r or px+q < r, where p, q, and r are specific rational numbers. Graph the solution set of the inequality and interpret it in the context of the problem.

Triniti had $500 in a saving account at the beginning of the summer Triniti had $500 in a saving account at the beginning of the summer. She wants to have at least $200 in the account by the end of the summer. She withdraws $25 each week for food, clothes, and movie tickets. Write an inequality that represents Triniti’s situation. B. How many weeks can Triniti withdraw money from her account. Justify your answer. 2. Kevin has $25. MP3 downloads cost $0.75 each. How many songs can he download and still have $13 left to spend? A. Write an inequality that represents Kevin’s situation. B. How many downloads can Kevin purchase? Justify your answer.

Triniti had $500 in a saving account at the beginning of the summer Triniti had $500 in a saving account at the beginning of the summer. She wants to have at least $200 in the account by the end of the summer. She withdraws $25 each week for food, clothes, and movie tickets. Write an inequality that represents Triniti’s situation. 500 – 25X > 200 B. How many weeks can Triniti withdraw money from her account. Justify your answer. X < 12 2. Kevin has $25. MP3 downloads cost $0.75 each. How many songs can he download and still have $13 left to spend? A. Write an inequality that represents Kevin’s situation. 25 – 0.75s > 13 B. How many downloads can Kevin purchase? Justify your answer. s < 16