melalexis
melalexis
27-08-2018
Mathematics
contestada
What is the width of the mat?
Respuesta :
Ollieme
Ollieme
27-08-2018
If you want the strip around the mat:
x=strip of mat
2(20+2x)+2(15+2x)=102
Distribute
40+4x+30+4x=102
Combine like terms
70+8x=102
Subtract 70
8x=32
Divide by 8
x=4
If you want the whole width of the mat:
w=15+x
w=15+2*4
w=23
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