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mina [271]
3 years ago
6

6 + 9 - 5 x 10 ÷ 5 + 1/2 of (90 - 25 + 5) =​

Mathematics
1 answer:
arsen [322]3 years ago
4 0

Answer:

40

Step-by-step explanation:

B I D M A S

(90 - 25 + 5) = 70

1/2 x 70 = 35

10 ÷ 5 = 2

5 x 2 =10

6 + 9  = 15

15 - 10 = 2

.... cba

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I need to know ASAP! Thanks ^^
jek_recluse [69]

Answer:

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Step-by-step explanation:

Knowing that the segment has 3 parts that are 3:1:1 and sum up to 50, you could find how much 1 would equal by finding the total in relation to the ratio (doing 3+1+1) which gets you 5 parts. Then you can divide the total (50) by 5 to figure out how much one part would equal (10). Now, since you know that 1 part is equal to 10 and that PQ is 3 parts, you can find that PQ is equal to 3x10, or 30.

7 0
3 years ago
Which statement best describes the 50% rule?
Klio2033 [76]

Answer:

1. $18.75

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Step-by-step explanation:

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7 0
3 years ago
The mean hours of sleep that students get per night is 7 hours, the standard deviation of hours of sleep is 1.7 hours, and the d
densk [106]

Answer:

c. 3.6 and 10.4 hrs

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviations of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

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Mean 7, standard deviation 1.7.

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So the correct answer is:

c. 3.6 and 10.4 hrs

5 0
3 years ago
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