College Mathematics
posted by Michele
A survey of 300 parks showed the following
15 had only camping
20 had only hiking trails
35 had only picnicking
185 had camping
140 had camping and hiking trails
125 had camping and picnicking
210 had hiking trails
Find the number of parks that:
Did not have any of these features?
Had exactly two of these features??

Ms. Sue
We'll be glad to check your answers.
Respond to this Question
Similar Questions

help with puncuation
James while John had had had had had had had had had had been correct 
Grammar
Can someone please check if my answers are correct? 
Health
I need help! Last summer my family and I were camping in our new trailer and we left for the day and came back to a trailer that had a mice party! The Mice were everywhere! Of course, my mom being a germofobic, cleaned the trailer … 
Math
14. Parks A survey of 300 parks showed the following. 15 had only camping. 20 had only hiking trails. 35 had only picnicking. 185 had camping. 140 had camping and hiking trails. 125 had camping and picnicking. 210 had hiking trails. … 
geometry
A survey of 500 showed the following 15 had only camping 20 had only hiking trails 35 had only picnicking 185 had camping 140 had camping and hiking trails 125 had camping and picnicking 210 had hiking trails Determine the number of … 
geometery
please walk me through this I am having a hard time with this A survey of 500 showed the following 15 had only camping 20 had only hiking trails 35 had only picnicking 185 had camping 140 had camping and hiking trails 125 had camping … 
Math
Jamal and dorothy wete hiking and had a choice between two trails. One was 5 1/3 miles long, and the other was 1 3/4 times as long. How long was the longer trail? 
English
1. If the weather permits, I'll go camping. 2. If weather permits, I'll go camping. 3. The weather permitting, I'll go camping. 4. Weather permitting, I'll go camping.  Do we have to use 'the' or not in the sentences? 
Pre Calc
The Department of Foreign Languages of a liberal arts college conducted a survey of its recent graduates to determine the foreign language courses they had taken while undergraduates at the college. Of the 500 graduate 207 had at least … 
Math
(Car Sales) Of the cars sold during the month of July, 89 had air conditioning, 99 had automatic transmission, and 74 had power steering. 5 cars had all three of these extras. 24 cars had none of these extras. 24 cars had only air …