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Dmitry [639]
2 years ago
6

I need help with this im on a test

Mathematics
1 answer:
sergey [27]2 years ago
7 0

Answer: A. 2

Step-by-step explanation:

add all 5 numbers together to get 40 then add one of the answer choices to the total and divide each one by 6 until you get 7.

42/6=7

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4 times a certain number is 92. what is the number?
Zolol [24]

Answer: 23

Step-by-step explanation:

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3 years ago
Alex is 4 years younger than 2 times his sister's age. Write a rule that represents Alex's age x as a function of his sister's a
Vesna [10]

Answer:

y = 2x - 4; Alex is 18.

Step-by-step explanation:

Since Alex is 4 years younger than 2 times his sister's age, and his sister is y and Alex is x, the function of y to x must be y = 2x - 4.

According to the rule, if Alex's sister is 11, Alex is 2 times that minus four. If you calculate that, you get

11 * 2 = 22

22 - 4 = 18

So Alex is 18 if his sister is 11.

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3 years ago
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Find the acute angle θ <br><br> cosθ = 0.5 (to the nearest degree)
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