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Day 4 formulas

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Day 4 formulas

1. 1. AIM: Using Formulas Do Now Weekly Quiz #9 1
2. 2. 2
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4. 4. Anticipatory Set:How have you seen formulas used in the real world? 4
5. 5. Using Formulas- Formulas are equations that show the relationshipbetween quantities that are represented by variables. The formula to find the area of a rectangle is Area = base • height 5
6. 6. Draw a sketch and use the formula to solve the following problems. 1. The length of a rectangle is 4 and the width is 8. What is the area? 6
7. 7. 2. The area of a rectangle is 48 and the length is 8. What isthe width? 7
8. 8. 3. The width of a rectangle is 9 and the area is 135. What is thelength? 8
9. 9. 1   d = rt, where d = distance, r = rate, and t = timeIf you travel at 4 feet per second for 138 second, what is thedistance traveled? 9
10. 10. 2   d = rt, where d = distance, r = rate, and t = time If you traveled 612 miles in 12 hours, what was the speed? 10
11. 11. Egg DensityMass of egg = ____Volume of Egg = ___ Density of Water = 1 g/mL Will a soda can float in water? Soda Density 11
12. 12. 3  The formula for finding density of an object is , whered = density, m = mass, and v = volume.What is the density of an object if the volume is 4 cm3 and the massis 64 grams? 12
13. 13. 4  The density of silver is about 11 g/cm3. What would the massof a silver sample be if the volume is 45cm3? 13
14. 14. 5  You find the volume of a sample of copper to be 35 cm3. Thedensity of copper is about 9 g/cm3. What would the mass of yoursample? 14
15. 15. BEFORE YOU LEAVE 14 ft 20 ft1. Find the perimeter of the rectangle above2. Write a formula to find the perimeter of any rectangle.Combine any like terms to express the formula in simplest form.Let P = Perimeter 15
16. 16. BEFORE YOU LEAVE PART 23. What is the perimeter of a rectangle whose length is 16inches and width is 2.5 inches? Use the formula.4. What if the perimeter was 20 and the length was 3? Usethe formula. 16
17. 17. Mr. Tjerslands Math 7Homework: Homework Sheet 17
18. 18. AIM: Using Formulas d = rt, where d = distance, r = rate, and t = time If you travel at 4 feet per second for 138 second, what is the distance traveled? If you traveled 612 miles in 12 hours, what was the speed? 18
19. 19. AIM: Using FormulasThe formula for finding density of an object is , whered = density, m = mass, and v = volume.What is the density of an object if the volume is 4 cm3 and the massis 64 grams? The density of silver is about 11 g/cm3. What would the mass of a silver sample be if the volume is 45cm3? 19