Answer:
She would need at least 11 buses leaving 17 spare seats.
Step-by-step explanation:
171+22+13= 206
206/20= 10.3
10.3 = 11
Answer: -9
Step-by-step explanation:
(6+3)÷(4-5)
Since 6+3 is 9 and 4-5 = -1
You do 9 divided by -1. It equals -9.
It is -9 since a positive divided by a negative number.
Its 18....................................
∵ the two triangles are congruent
AB / AD = BC / DE
8/4 = 6/ DE
DE = 6 x 3 ÷ 8 = 3 cm