-4(2n+7)-8n-7 hahdjxuffs

Answers

Answer 1

Answer: -4(2n + 7) - 8n - 7

First, expand. / Your problem should look like: $-8n - 28 - 8n - 7$
Second, gather the like terms. / Your problem should look like: $(-8n - 8n) - 28 - 7$
Third, simplify -8n - 8n to get -16n. / Your problem should look like: $-16n - 28 - 7$
Fourth, simplify. / Your problem should look like: $-16n - 35$

Answer: -16n - 35

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Answers

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Write a real-world problem that could be represented by the following equation. 70 + 5x = 40 + 10x

Answers

Jack wants to paint his house. he collected quotations from two different painters. The first painter's total cost in terms of the number of hours, (x), worked was modelled as f(x) = 70 + 5x, while that of the second painter was g(x) = 40 + 10x. Jack knows that it will take about 6 hours to paint the house. He figured out that the cost quoted by the two painters is equal for 6 hour of work.

Last Saturday, Jay spent 6 hours playing games, studying and talking with his friends. he spent 2/5 of the time playing games and 1/2 of the time studying. How many minutes did he spend talking with his friends?

Answers

(1 - (2/5 + 1/2)) x (6 x 60)
(1 - (4/10 + 5/10)) x 360
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1/10 x 360 = 36
so he spend 36 minutes talking with his friend

Final answer:

Jay spent 36 minutes talking with his friends on Saturday after spending 2/5 of his time playing games and 1/2 of his time studying.

Explanation:

The total time Jay spent on all activities is 6 hours. He spent 2/5 of his time gaming, so that would be 0.4 * 6 hours = 2.4 hours, and he spent half of his time studying, that's 0.5 * 6 hours = 3 hours. To figure out how much time he spent talking with friends, we subtract the time spent gaming and studying from the total time. So, 6 hours – 2.4 hours – 3 hours = 0.6 hour. As there are 60 minutes in an hour, Jay spent 0.6 * 60 = 36 minutes talking with his friends.

Learn more about Time calculation here:

brainly.com/question/33260049

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dan runs freddy's deluxe car wash nine workers wash a total of 369 cars in one week suppose the workers all wash the same number of cars how many cars does each worker wash that week