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pogonyaev
3 years ago
15

Yesterday, 7 friends planned their camping trip. they spent $9 per person to buy food for their trip. Write two equivalent expre

ssions that show the total amount of money they spent on food. Then evaluate one of the expressions to find the total amount spent on food.
Mathematics
2 answers:
irakobra [83]3 years ago
4 0

Answer:

7times 9 is 63

Step-by-step explanation:

Flauer [41]3 years ago
3 0

Answer:

7 X 9 = 63

Step-by-step explanation:

Basically if 7 friends each spent $9 each you can times it to get the answer like 7x9 = 63 because each friend spent 9 each and there is seven so there for all together its 63

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Answer:

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Step-by-step explanation:

We apply distributive property to get rid of the first parenthesis, by multiplying each term inside by the factor 1/6:

\frac{1}{6} (30x+24)-\frac{1}{7} (63-7x)\\\frac{30}{6} x+\frac{24}{6} -\frac{1}{7} (63-7x)\\5x+4-\frac{1}{7} (63-7x)

now we get rid of the second parenthesis by multiplying the factor "-\frac{1}{7}" times each of the terms inside the parenthesis (notice here that this factor is negative , so it will flip the signs of the terms it multiplies):

5x+4-\frac{1}{7} (63-7x)\\5x+4-\frac{63}{7} +\frac{7}{7} x\\5x+4-9+x

Next we combine like terms:

5x+4-9+x\\5x+x+4-9\\6x-5

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Step-by-step explanation:

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