3 years ago

What numbers do I have to write in the blanks?

Mathematics

1 answer:

QveST [7]3 years ago

5 0

Answer:

I think it is 20

Step-by-step explanation:

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$\begin{array}{ccc}10\ lb&-&\$6.55\\\\1\ lb&-&\$ x\end{array}\ \ \ |cross\ multiply\\\\\\\\10\cdot x=1\cdot6.55\\\\10x=6.55\ \ \ \ |divide\ both\ sides\ by\ 10\\\\x=\frac{6.55}{10}\\\\x=0.65\underline{5}\approx\boxed{\$0.66}\\$

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