chelsea7768
chelsea7768
20-01-2015
Mathematics
contestada
please help me with 15 and 16.
Respuesta :
konrad509
konrad509
20-01-2015
15.
[tex]3x-5+2x=90\\ 5x=95\\ x=19[/tex]
16.
[tex]\$38.85-\$6=\$32.85\leftarrow\text{this much they spent without the tip}\\ \$32.85\div3=\$10.95\leftarrow\text{this much paid each of them}\\ \$10.95+\$2=\$12.95\leftarrow\text{this is the regular price}\\[/tex]
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