amy is 5 feet tall and casts a 4 foot shadow. the pine tree has an 8 foot shawdow. how tall is the pine tree

8 divided by 4=2 2•5=10 hope this helped!

A 5 foot girl casts a 4 foot shadow, a nearby stop sign casts an 8 foot shadow. How tall is the stop sign?

To find the height of the pine tree, we can use a proportion. Since we know the ratio between Amy's height and her shadow, we can set up a proportion with the ratio between the pine tree's height and its shadow. Here's how we can do it:

Let's call the height of the pine tree "x". We know that Amy's height is 5 feet and her shadow is 4 feet. We also know that the pine tree's shadow is 8 feet.

Using the proportion, we can set up the following equation:

Amy's height / Amy's shadow = Pine tree's height / Pine tree's shadow

Substituting the given values, we get:

5 feet / 4 feet = x / 8 feet

To solve for x, we can cross multiply:

5 feet * 8 feet = 4 feet * x

40 feet = 4 feet * x

Now, divide both sides by 4 feet to isolate x:

40 feet / 4 feet = x

10 feet = x

Therefore, the pine tree is 10 feet tall.

Cross multiply and solve this proportion.

5/4 = x/8