Five of the 25 girls on Alden Middle School’s soccer team are seventh-grade students. Find the percentage of seventh graders on
the team. Show two different ways of solving for the answer. One of the methods must include a diagram or picture model.
1 answer:
Answer:
percentage of seventh graders on the team is 20%
Step-by-step explanation:
given data
total girl = 25
soccer team = 5
to find out
percentage of seventh graders on the team with two different way
solution
we first make here a tape diagram
there in begin by divide the tape diagram into 5 equal part
and Each part represent 5 girls
so divide the 100% into 5 equal sections as show in figure below
and
another way is
percentage of seventh graders on the team is = × 100%
percentage of seventh graders on the team is 20%
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Problem 1
Draw a straight line and plot P anywhere on it. Use the compass to trace out a faint circle of radius 8 cm with center P. This circle crosses the previous line at point Q.
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With P as the center, draw another circle with radius 7.5 cm. This circle will cross the ray PX at location R.
Refer to the diagram below.
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Problem 2
I'm not sure why your teacher wants you to use a compass and straightedge to construct an 80 degree angle. Such a task is not possible. The proof is lengthy but look up the term "constructible angles" and you'll find that only angles of the form 3n are possible to make with compass/straight edge.
In other words, you can only do multiples of 3. Unfortunately 80 is not a multiple of 3. I used GeoGebra to create the image below, as well as problem 1.
