Liam bought a comic book and had $5 left. If he had a total of $8 walking into the store, how much did he spend on the comic boo
2 answers:
Answer:
Liam spent $3 on the book.
Step-by-step explanation:
Liam bought a comic book and had $5 left.
He had a total of $8 walking into the store, so he spent dollars on the comic book.
Liam used the equation 5x=8 to model the problem.
This is wrong. The correct form would have been or
where x represents the amount of money he spent.
Hence, Liam spent $3 on the book.
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Answer:
Step-by-step explanation:
We have several properties of exponents in use here. The two that are used are:
<em>(Exponents with the same base that are being multiplied together can have the exponents added)</em>
<em>(A base raised to a power, and then raised to another power means that you can multiply the exponents to get the same result as doing inside operations and then outside operations)</em>
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Let's apply it!
First, let's simplify what's inside the parenthesis.
<em>(Remember, they have the same base of "x", so we can add the exponents)</em>
=
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Now we have . Let's use the second rule.
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Hope this helps! :^)
Answer:
Step-by-step explanation:
Let assume that the volume = 88 cubic feet
Then:
The construction cost now is:
Now, to determine the minimum cost:
Now;