Mr.Chan made 252 cookies for the Annual Fifth Grade Bake Sale. They sold 3/4 of them, and 3/9 of the remaining cookies were give
n to PTA members. Mr. Chan allowed 12 students to help divide the cookies that were left equally. How many cookies will each student get? Please explain! Due 2-19-17
1 answer:
You might be interested in
Answer:
The length of KM is units.
Step-by-step explanation:
Given the statement: KLMN is a trapezoid, ∠N= ∠KML, FD=8, , F∈ KL, D∈ MN , ME ⊥ KN KF=FL, MD=DN,
.
From the given information it is noticed that the point F and D are midpoints of KL and MN respectively.
The height of the trapezoid is .
Midsegment is a line segment which connects the midpoints of not parallel sides. The length of midsegment of average of parallel lines.
Since , therefore LM is 3x and KN is 5x.
Therefore the length of LM is 6 and length of KN is 10.
Draw perpendicular on KN form L and M.
(KA=EN, isosceles trapezoid)
Therefore the length of KE is 8.
Use Pythagoras theorem is triangle EKM.
Therefore the length of KM is units.
