+0  
 
+1
166
2
avatar+701 

geometry 

 Sep 21, 2018
 #1
avatar+3855 
+2

Is it the last option? 40

x-50=41, x=91, x-50=59, x=109. So, (D). 

 Sep 22, 2018
 #2
avatar+96373 
+2

Mary travels (at a minimum)    4 * 40  = 160 miles

And at a maximum of  4 * 60  = 240  miles

So....she travels between  160  and 240 miles

But...since she drives 50 miles less than Marty, Marty must travel  between 160 + 50  = 210 miles and 240 + 50  = 290 miles

 

So...the second choice is correct.....

 

 

cool cool cool

 Sep 22, 2018

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