Question 999719
1. Plug the values in. If the left hand side equals the right hand side, it's a solution.
{{{-6(5/6)-7(-2)=9}}}
{{{-5+14=9}}}
I'll let you finish that.
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2. I'll do one. You do the others the same way.
{{{y=-(2/3)(-6)+1}}}
{{{y=4+1}}}
{{{y=5}}}
(-6,5)
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3. {{{C=((2.5-5.5)/5.5)*100=-54.5}}}
54.5% reduction in the number of hours.
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4. 3.8% of 2000 people.
{{{(3.8/100)(2000)=76}}}
76 people ride bikes to work.