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djverab [1.8K]
3 years ago
11

Mark buys a wooden board that is 7 1/2 feet long. The cost of the board is $0.50 per foot, including tax. What is the total cost

, in dollars, of Mark's board?
Mathematics
1 answer:
artcher [175]3 years ago
7 0

Answer:

Total cost of Mark's board is $3.75.

Step-by-step explanation:

We are given the following in the question:

Length of wooden board =

=7\dfrac{1}{2}\text{ foot}

Unit cost of board = $0.50 per foot

Total cost of board =

=\text{Length of board}\times \text{Unit cost of board}\\\\=7\dfrac{1}{2}\times 0.50\\\\=\dfrac{15}{2}\times \dfrac{1}{2}\\\\=\dfrac{15}{4} = 3.75\$

Thus, total cost of Mark's board is $3.75.

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Answer: The correct answer is the Law of Large Numbers

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4 0
3 years ago
9(2x + 10) = 2(9x+ 45)
Delicious77 [7]

Answer:

infinitely many solutions

Step-by-step explanation:

1) distribute 9 to each term inside parenthesis on left side of equation

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Hope this helps!

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4. Find x if PQ = RS,<br> PQ = 9x - 7, and RS = 29.
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Answer:

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