Ineed on 15 & 16.
and pls show the work that’s the part that’s giving me trouble

gr9 academic math

Step-by-step explanation:

# 16

180 degrees total in a triangle

Largest angle = 8x

Middle angle =3X

Small Angle = 1 X

Total   12 X = 180 degrees

X = 15 degrees

8 times 15 =  120 degrees

3 times 15 =  45 degrees

1 times 15 = 15 degrees

Check   120 + 45+ 15 = 180 degrees

answer: given that the roller coaster can accommodate 1600 riders per hour, thus the roller coaster can accomodate 1600 / 60 = 26.67 riders per minute.

given that there are 345 people in the line, the number of minutes it will take for the 345 persons to get into the roller coaster is given by 345 / 26.67 = 12.94 minutes.

therefore, it will take you 12.94 minutes to get to the front of the line.

step-by-step explanation:

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80