Name Family # Date Spiral Review Worksheet #23 Find the length of each missing side. If necessary, round to the nearest hundredth. 1). 2). 3). Write each equation in slope-­‐intercept form. 1). 𝑦 + 2 = 4(𝑥 + 2) 2). 𝑦 − 3 = −5𝑥 + 2 3). 2𝑥 − 6 = 3𝑥 − 8 Application problems. 1). As a lifeguard, you earn $6 per day plus $2.50 per hour. Write and solve an equation to find how many hours you must work to earn $16 in one day.
2). A used book store also started selling used CDs and videos. In the first week, the store sold 40 used CDs and videos, at $4.00 per CD and $6.00 per video. The sales for both CDs and videos totaled $180.00. Write a system of equations to represent the situation. How many CDs and videos did the store sell in the first week? 3). The sum of the ages of two sisters is 25. The second sister’s age is 5 more than three times the first sister’s age n. Find the two ages.