Question 1158052
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Without algebra....<br>
If all 50 had been Mighty Widgets, the total sales would have been 50*$20 = $1000; the actual total was $960, which is $40 less.<br>
Each Wonder Widget costs $5 less than each Mighty Widget.  To account for the difference of $40, the number of Wonder Widgets must have been $40/$5 = 8.<br>
ANSWER: 8 Wonder Widgets; 42 Mighty Widgets<br>
CHECK: 8(15)+42(20) = 120+840 = 960<br>