algebra

posted by .

at 5 p.m., a person 5 feet tall casts a 10-foot shadow. at the same time, a flagpole casts a 40-foot shadow?

  • algebra -

    Use a proportion. Cross multiply and solve for x.

    5/10 - x/40

  • algebra -

    at 5 p.m., a person 5 feet tall casts a 10-foot shadow. at the same time, a flagpole casts a 40-foot shadow. what is the height of the triangle?

  • algebra -

    20 foot

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    At a given time, the height of an object is directly proportional to the length of the shadow that is cast on the ground. A person 6 feet tall casts a shadow 1 foot long at noon. a) What is the length of the shadow cast by a flagpole …
  2. geometry/algebra

    at 5pm a person 5 feet tall casts a 10 foot shadow. at the same time a flagpole casts a 40 foot shadow. what is the height of the flagpole?
  3. MATH

    If a flagpole casts a shadow of 300 ft. and a person standing 6ft tall casts a shadow of 400 ft. at the same time of day. How tall is the flagpole?
  4. math

    Darius uses the shadow method to estimate the height of a flagpole. He finds that a 5 foot stick casts a 4 foot shadow. At the same time he finds that the flagpole casts a 20 foot shadow. Make sketch. Use Darius's measurements to estimate …
  5. geometry

    A woman who is 6-ft tall casts a 4.5-foot shadow at the same time that a building casts a 75-foot shadow. What is the height of the building in feet?
  6. Math

    A flagpole casts a shadow 30 feet long. A 5 foot woman standing next to the flagpole casts a shadow 6 feet long. How tall is the flagpole?
  7. trigonometry

    If a tree casts a shadow of 12 feet at the same time that 6 foot person casts a shadow what is the length of the three to the nearst foot
  8. algebra 2

    Shalonda notices that when she stands next to the flagpole, she casts a shadow that is 8 feet long and that the flagpole casts a shadow that is 28 feet long. Little Shalonda is 4 feet tall. How tall, to the nearest foot, is the flagpole?
  9. algebra

    roger is 5 feet tall and casts a shadow 3.5 feet longer. at the same time,the flagpole outside his school casts a shadow 14 feet long. write and solve a proportion to find the height of the flagpole.
  10. algebra 2

    An object's height varies directly with the length of its shadow. A person who is 5 feet tall casts an 8-foot shadow. How long is the shadow of a 20-foot tree?

More Similar Questions