# 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?

1. 👍 0
2. 👎 0
3. 👁 197
1. Use a proportion. Cross multiply and solve for x.

5/10 - x/40

1. 👍 0
2. 👎 0
2. 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?

1. 👍 0
2. 👎 0
3. 20 foot

1. 👍 0
2. 👎 0

## Similar Questions

1. ### prealgebra

At the same time that a 60-foot tall building casts a shadow that is 21.5 feet long, a nearby tree casts a shadow that is 18 feet long. Which measure is closest to the height of the tree?

asked by Mary on August 15, 2012
2. ### math

A 5-foot tall women is standing near a flag pole which casts a shadow of 21 feet on level ground. If the women’s shadow is 3 feet long, how tall is the flag pole?

asked by Eliane on February 12, 2014
3. ### Math

Use similar triangle to solve. A person who is 6 feet tall standing 140 feet from the base of a tree and the tree casts a 150 foot shadow. The person's shadow is 10 feet in length. What is the height of the tree?

asked by Luis on November 17, 2015

if a person is 6 feet tall and casts a 9 foot shadow, how tall would the shadow of a 100 foot tall tree be?

asked by liz on December 4, 2011
1. ### math

A tree casts a shadow of 28 feet. At the same time, a biologist who is 7 feet tall casts a shadow of 2 feet. How tall is the tree?

asked by Daniel on May 19, 2011
2. ### Math

Use similar triangles to solve. A person who is 6 feet tall is standing 108 feet from the base of a​ tree, and the tree casts a 120 foot shadow. The​ person's shadow is 12 feet in length. What is the height of the​ tree?

asked by Isel on January 20, 2020
3. ### math

You want to determine the height of your school. The building casts a 6 foot shadow at the same time you cast a 15 inch shadow. If you are 5 feet tall how tall is the building?

asked by helen on February 23, 2012
4. ### Math

A 6-foot person standing 15 feet from a streetlight casts a 15-foot shadow. Two similar triangles are formed. One triangle is formed by the person and the shadow that the person casts. A second triangle is formed by the

asked by Anonymous on September 24, 2015

A flagpole casts a shadow 27 feet long. A person standing nearby nearly casts a shadow 8 feet long. If the person is 6 feet tall, how tall is the flagpole

asked by ANdRAYiA on March 1, 2009
2. ### 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?

asked by kristy on December 15, 2016
3. ### Math

On level ground, a 60-foot-tall vertical building casts a 10-foot shadow. at the same time, another vertical building casts a 25-foot shadow. how many feet tall is the second building?

asked by Ray on December 1, 2016
4. ### Sue

60- foot tall building casts a shadow that’s 21.5 feet long a nearby tree casts a shadow that’s 19 feet long. Which measure is closest to the height of the tree?

asked by Anonymous on May 25, 2018