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REY [17]
3 years ago
8

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.

Mathematics
1 answer:
Westkost [7]3 years ago
4 0

Answer:

Step-by-step exAnswer:(-2, 2)

Step-by-step explanation:

7q² - 28 = 0

Add 28 to bothside

7q² - 28 + 28 = 0+ 28

7q² = 28

Divide bothside by 7

7q² / 7 = 28/7

q² = 4

Take the square root of bothside

√q² = ±√4

q = ± 2

q = -2 or q =2

q = (-2, 2)

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25t means "25 times t" where t is some unknown number. It is a placeholder for a number.

To find what the number is, we undo what is happening to t. So we divide both sides by 25 to undo the operation "multiply by 25"

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25*t = 1125

25*t/25 = 1125/25 divide both sides by 25

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<h3>Answer: 45</h3>

As a check, we can plug t = 45 into the equation and we should get the same value on both sides

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