Answer:
36 blocks
Step-by-step explanation:
It takes 5 minutes for 15 blocks.
It takes 12minutes for ? blocks.
Set it up with the minutes on top and blocks on bottom:
[tex] \frac{5}{15} = \frac{12}{?} [/tex]
Cross multiply.
[tex]15 \times 12 = 180[/tex]
[tex]180 \div 5 = 36[/tex]
She skates 36 blocks in 12 minutes.
