SOLUTION: Hello my friends and helpers, These are some problems I have not encountered, and I知 trying to learn just in case we have a test. Thanking you in advance. Betty 1. Det

Algebra ->  Linear-equations -> SOLUTION: Hello my friends and helpers, These are some problems I have not encountered, and I知 trying to learn just in case we have a test. Thanking you in advance. Betty 1. Det      Log On


   

Question 999719: Hello my friends and helpers,
These are some problems I have not encountered, and I知 trying to learn just in case we have a test.
Thanking you in advance. Betty

1. Determine if (5/6, -2) is a solution to -6x-7y=9
2. Given the linear equation y = -2/3x +1. Find the y - coordinates of the points (-6, ), (-3, ) and (3, )

3. The Hansons have reduced the average number of hours they watch television each day from 5.5 hours in March to 2.5 hours in June. Find the rate of change in the average number of hours they watch television each day.
4. A survey of 2,000 people was given to find their mode of transportation to work each day. The pie chart below gives the results. Of the people surveyed, how many travel by bike to work?
There is the Pie Chart info below:
Bike 3.8%
Taxi 9.8%
Walk 3.4%
Bus 14.6%
Drive 68.4%







Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1. Plug the values in. If the left hand side equals the right hand side, it's a solution.
-6%285%2F6%29-7%28-2%29=9
-5%2B14=9
I'll let you finish that.
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2. I'll do one. You do the others the same way.
y=-%282%2F3%29%28-6%29%2B1
y=4%2B1
y=5
(-6,5)
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3. C=%28%282.5-5.5%29%2F5.5%29%2A100=-54.5
54.5% reduction in the number of hours.
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4. 3.8% of 2000 people.
%283.8%2F100%29%282000%29=76
76 people ride bikes to work.