Need math help with: How many pins did she have left?

Anonymous
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Question Description

Rosa had 21 hair clips more than pins. She gave away 13 pins and had 48 hair clips and pins left sltogether. How many pins did she have left?

JamesM847
School: University of Maryland

let number of clips be c and number of pin be p, then we have

c-p= 21

c+p = 48+13 =61

add the two equations, we have

2c = 21+61 = 82

c = 41

p = c-21 = 20

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Review

Anonymous
Thanks, good work

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