Answer:
102
Step-by-step explanation:
Paula's parents bought 102 mini-sandwiches. When I multiplied 17 by 6, I got 102. To check my answer, I divided 102 by 6 and got 17.
17x6=102
102/6=17
Hope this helps:)
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Answer: -2
Step-by-step explanation:
3x+2y=16
x+y=4 multiply by -2
-2x-2y=-8
3x+2y=16  ------a
-2x-2y=-8  -------b
Add equation a and b
(3x+-2x)+(2y+-2y) = 16+(-8)
x+0=8 (y has been eliminated)
 
        
                    
             
        
        
        
<span><span><span>2x </span>+ 7 </span>= <span><span>x + x </span>+ 7 is an example of an equation with an infinite number of solutions, meaning any number could be the answer.
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~212 rounded to the nearest 10 would be 210.
~87 rounded to the nearest 10 would be 90.
210 + 90 = 300
Your answer would be 300.
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Hope this helps!!!! :D