Althea’s family decided to attend the yearly sailing festival in their town. This year the boat races will include both rowing a
nd sailing craft. Althea was excited about watching the racing events, as well as participating in the activities and seeing the informational booths for children.
Althea saw different types of sailboats on the water. She noticed that while each sailboat had triangular sails, different types of boats had different sizes and different numbers of sails. Here are two of the sailboats she saw:
*check the image*
(a) What is the area of each sail? Which sailboat has the greatest total sail area? The area formula for a triangle is or . Show your work.
(b) Althea wondered how much the material for a sail would cost. Nylon sailcloth costs $1.50 per square foot. What is the cost of the sails for each of the sailboats? Show your work.
(c) Althea learned that a more expensive material for sails is carbon fiber. Carbon fiber costs 3 times as much as nylon sailcloth. What is the total price for carbon fiber sails for each boat? What is the difference in price between the catboat sail and the sloop sails when carbon fiber is used? Show your work.
Please help don't answer if you don't know I need to show my work please show ur work PLEASE!!!
a b and c are NOT the choices its questions!!
Althea saw different types of sailboats on the water. She noticed that while each sailboat had triangular sails, different types of boats had different sizes and different numbers of sails. Here are two of the sailboats she saw:
*check the image*
(a) What is the area of each sail? Which sailboat has the greatest total sail area? The area formula for a triangle is or . Show your work.
(b) Althea wondered how much the material for a sail would cost. Nylon sailcloth costs $1.50 per square foot. What is the cost of the sails for each of the sailboats? Show your work.
(c) Althea learned that a more expensive material for sails is carbon fiber. Carbon fiber costs 3 times as much as nylon sailcloth. What is the total price for carbon fiber sails for each boat? What is the difference in price between the catboat sail and the sloop sails when carbon fiber is used? Show your work.
Please help don't answer if you don't know I need to show my work please show ur work PLEASE!!!
a b and c are NOT the choices its questions!!
1 answer:
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Step 1: Find the slope:
This gives you , but we need to find b.
To find b, substitute in one (x,y) pair and it doesn't matter which one. I'll go with (4,-2):
Now take that b-value and plug in into the slope-intercept form:
It's always a good idea to toss in the other x-value from the other point, to make sure it checks out.