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LUCKY_DIMON [66]
1 year ago
10

9-(-0.87)-0.3 will someone please help me I can’t remember how todo this and my kid needs my help!

Mathematics
2 answers:
fredd [130]1 year ago
8 0

Answer:

92

Step-by-step explanation:

3+3=6

kenny6666 [7]1 year ago
7 0

Answer: 9.57

Step-by-step explanation:

do 9 - -0.87 first.

that will give you 9.87

then you subtract 0.3

final answer: 9.57

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In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionists is bell-s
Radda [10]

Answer:

68%

Step-by-step explanation:

The Standard Deviation Rule = Empirical rule formula states that:

68% of data falls within 1 standard deviation from the mean - that means between μ - σ and μ + σ.

95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ.

99.7% of data falls within 3 standard deviations from the mean - between μ - 3σ and μ + 3σ.

From the question,

Step 1

We have to find the number of Standard deviation from the mean. This is represented as x in the formula

μ = Mean = 61

σ = Standard Deviation = 8

For x = 53

μ - xσ

53 = 61 - 8x

8x = 61 - 53

8x = 8

x = 8/8

x = 1

For x = 69

μ + xσ

69 = 61 + 8x

8x = 69 - 61

8x = 8

x = 8/8

x = 1

This falls within 1 standard deviation of the mean where: 68% of data falls within 1 standard deviation from the mean - that means between μ - σ and μ + σ.

Therefore, according to the Standard Deviation Rule, the approximate percentage of daily phone calls numbering between 53 and 69 is 68%

3 0
2 years ago
She learns that the fabric she wants to use is $7.99 per yard. Find the total cost of 4 yards of fabric. Justify your answer by
sattari [20]

Answer:

$31.96

Step-by-step explanation: multiply without the decimal, the put it in once multiplied

799 * 4 = 3196

then put in the decimal... 31.96

8 0
3 years ago
Pls do 1232/70<br> long divison method
goblinko [34]
1232 divided by 70. long division. the remainder is 42. the quotient is 17
4 0
2 years ago
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sarah is makeing 4 batches of granola bars she adds 7-8 peanuts. to eatch batch. her measureing cul holds 1-8 cup of peanuts
jarptica [38.1K]
From what i gathered... i think i<span>t would be 3.5?
Hope i</span><span>t helps. . . . </span>
6 0
2 years ago
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mr Goodwill [35]

Answer:

range of the test scores is 48

Step-by-step explanation:

60,72,94,108

108- 60=48

4 0
3 years ago
Read 2 more answers
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