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Naily [24]
3 years ago
7

7n - 4 (8n+4) = 159

Mathematics
1 answer:
Romashka [77]3 years ago
5 0

Answer:

n = -7

Step-by-step explanation:

Use distributive property:

7n - 32n - 16 = 159

Combine like terms

-25n - 16 = 159

Add 16 to both sides to isolate variable n

-25n = 175

Divide both sides by -25 to isolate variable n

n = -7

Check your work:

7(-7) - 32(-7) - 16 = 159

-49 + 224 - 16 = 159

159 = 159

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Theodore says 7×600 is greater than 6×7000. cristal says 7×600 is less than 6×7,000.​
noname [10]

Answer:

Cristal is correct because 7 x 600 is less than 6 x 7,000.

Step-by-step explanation:

Because they are just switching the numbers 7 and 6 and 7 x 6 = 6 x 7, you have to look at the number of zeros. As you can see, 7,000 has 1 more zero than 600, so Cristal is correct. Just like I said 7 x 6 and 6 x 7 is interchangeable, so is 7 x 600 and 6 x 700, they both equal 4,200. However, 6 x 7,000 is 42,000.

Hope this helps! If you have any additional questions please don't hesitate to ask me or your teacher to be sure you master the subject. Stay safe and please mark brainliest! :)

7 0
3 years ago
Read 2 more answers
Someone please help me​
vladimir1956 [14]

Answer:

1. equation: y = 7x, missing = 35

2. equation: y = x - 5, missing = 1

3. equation: y = 1/2x, missing = 2

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Step-by-step explanation:

Equation Format: y = mx + b

<h2>1.</h2>

(m) Slope =  \frac{14-7}{2-1}

          = 7

14 = 7(2) + b

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Solve for the missing y:

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-Chetan K

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3 years ago
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Rina8888 [55]
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4 years ago
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