Let be be Beth, bi be Bill, and e be edie. Then:
1/be + 1/bi +1/e=1/12
1/bi + 1/e=1/15
10/be +10/bi +10/e+5/be+5/bi=1
Solve for be, bi, and e
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Answer:
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Step-by-step explanation:
Answer:
12.57
Step-by-step explanation:
$7.40/ 5 pounds
= $1.48/pound
The unit rate is $1.48/pound~
