Don't laugh at me lol...it says Jamal is 5 feet tall. One sunny morning he notices that he casts a shadow that is 2 feet long. If the school building casts a shadow that is 7 feet long at the same time, what is the height of the building?
Why would we laugh?
Use a proportion.
5/2 = x/7
Cross multiply and solve for x.
No worries, I'm here to help you! To find the height of the building, we can set up a proportion using the information given. Here's how you can do it:
Step 1: Set up the proportion:
Let x be the height of the building. We can set up the following proportion:
5 feet / 2 feet = x / 7 feet
Step 2: Solve the proportion:
To solve the proportion, we need to cross multiply:
(5 feet) * (7 feet) = (2 feet) * x
Step 3: Simplify and solve for x:
35 feet = 2 feet * x
To isolate x, divide both sides of the equation by 2 feet:
35 feet / 2 feet = x
The height of the building is 17.5 feet.