Answer:
144 people were originally at the party.
Step-by-step explanation:
18 boys is one fifth of the second boys population, so the second population is 18x9 = 162. The original population would be 162-18, which equals 144.
Answer:
the second one
Step-by-step explanation:
if it is right pls mark brainliest thanks :)
6x=-5y
-5y=6x
so the answer is y=-6/5x
The least number of socks that rob can remove to guarantee he removed a pair of white socks without looking is15 socks
Answer:
∠ XYZ ≈ 72.9°
Step-by-step explanation:
Using the tangent ratio in the right triangle
tanXYZ = 
= 
= 
, thus
XYZ = 
( ) ≈ 72.9° to 1 dec. place )
