Online Update 12 7 MA 08 Do your BEST….take your time….check answers Write the ratio in simplest form. 1. 9 : 27 2. 36 : 45 4. 3 Complete. 3. 5 1 ft = _____ in. 4 2 ft = _____in. 3 USE CHART on TOP WALL front of the ROOM or following link http://www.purplemath.com/modules/metric.htm 5. 200 mm = _____ m 6. 4.2 m = _____ mm 7. 32 mm = _____ cm 8. 6.8 km = ______ m Solve the proportion. 9. 2 12 x 30 10. 3 x 5 4 11. Maria can travel 100 miles on 6 gallons of gas. How far could she go on 10 gallons? 12. At the dance the ratio of boys to girls was 3:5. If there were 60 girls, how many boys were at the dance? 13. 3/5(1/2) ÷ 3/5(1/2) = Change to a decimal. 14. 3 8 15. 4% 17. 6% 19. 4.3 Change to a fraction in simplest form. 16. 0.8 Change to a percent. 18 5 6 Solve. 20. 12 is what percent of 20? 21. What is 4% of 60? 22. 14 is 70% of what number? 23. 38 out of 40 is what percent? Find the percent of change to the nearest tenth of a percent. Label answer as an increase or decrease. 24. 160 lb to 120 lb 25. $400 to $450 26. Find the slope between points (3,6) and (2,7). 27. Ben's Bike Shop is having a 25% off sale on all bikes. If a bike's original price is $168, how much will it cost during the sale? 28. A stereo costs $120. If sales tax is 7%, what will be the total cost of the stereo? 29. Three out of every 5 students went to the football game. What percent of the students went to the football game? 30. What is the y intercept in 2y = 4x – 8? The slope? Combine like terms and simplify for 31 and 32. 31. 5x2 – 7x + 2 + 2x2 + 2x 33. Solve for x. 3(x – 4) + 2 (x -3) = 2(x – 5) + 2(x + 5) TURN IN the tray and work on something else 32. 9x2 + 3x – 4 – 4x2 – 8x + 7