A group of 47 children, with some adults, travelled by coach on a trip to a zoo. The total cost of the trip was £591.
The entrance fee was £12.35 for each adult and £8.75 for each child.
The cost of hiring the coach was £118
How many adults were there in the group?
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"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?