Submit 50/60 Marks
45%
Here are five number cards.
2 5
7
8
9
One of the cards is removed and the mean average
of the remaining four number cards is 6
Which card was removed?
You must show your working.
Note: Please make sure your final answer says card
OCT
31

2

step-by-step explanation:

because that’s us why

83-45=38

38 was the other number

hope your goes well, here's a turkey

-thekoolkid1o1

part a: triangles gcb and epb

part b. sides cg and rp are parallel by definition of parallelogram.

angles cgb and e are congruent by being alternate interior angles of parallel lines cut by a transversal. angles gbc and ebp are congruent because they are vertical angles. by aa similarity, the triangles are similar.

part c. since the triangles are similar, the ratios of the lengths of corresponding sides are equal.

calculation of be:

gb/be = cb/bp

(400 ft)/be = 300/200

(400 ft)/be = 3/2

3be = 2 * 400 ft

3be = 800 ft

be = 800/3 ft

calculation of pe:

gc/pe = cb/bp

(350 ft)/pe = 300/200

(350 ft)/pe = 3/2

3pe = 2 * 350 ft

3pe = 700 ft

pe = 700/3 ft