Answer:
Area decreases by 16%
Step-by-step explanation:
Use formula for the area of the triangle
<u>Initial triangle:</u>
The base is 18 cm
The height is 5 cm
The area is
<u>New triangle:</u>
The base is 
The height is 
The area is
Area decreases by
Set up multiplication/division of ratios to cancel out units you don't need for the final answer and introduce those that you do.
We have m/s and we want m/min so
(100m/s)(60s/min)=6000m/min
Divide.
1/3 / 5
Or multiply by the reciprocal of 5:
1/3 * 1/5 = 1/15
Therefore 1/15 cup of flour is used to make 1 dinner roll.
We can set up a proportion:
5/1/3 = x/5 2/3
Multiply 5 2/3 to both sides:
28 1/3 / 1/3 = x
85 = x
So 85 rolls can be made with 5 2/3 cups of flour.
