3.7 Using Formulas

Use one of your formulas to help you answer the following question.
Write your equations on a separate sheet of paper.
Number the problems. Show your work in solving. Did you read the directions? yes or no? 1. The area of a rectangle is 24 in length of 8 in. What is the width?
(place the abreviated label in the second box) width = 2. The area of a triangle is 18 m base is length is 4 m. What is the height of the triangle?
(place the abreviated label in the second box) height= 3. A rectangular building has a length of 20 yds and a width of 15 yds. What is the perimeter of the building?
(place the abreviated label in the second box)
perimeter = distance = 4. Tom ran a race at 6 miles per hour for 3.5 hours. How far did he run?
(place the abreviated label in the second box) 5. A plane traveled a distance of 1350 miles. It was flying at 450 miles per hour. How long was the plane flying?
(place the abreviated label in the second box) time = 6. The perimeter of a rectangle is 36 cm. The length of the rectangle is 10 cm. What is the width?
(place the abreviated label in the second box) width = 7. Review: Solve for y:
4x + 2y= 20
8. Review: Solve for y
7x - y = 9 9. Review: Solve for y
12 = 8x - 2y 8. Review: Solve the eqaution.
2(x + 4) = 3x - 8 x = |

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