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IgorLugansk [536]
3 years ago
13

What is 9/4 + 2/3 please help me

Mathematics
2 answers:
Reptile [31]3 years ago
8 0

Answer:

2 11/12 or 35/12

Step-by-step explanation:

malfutka [58]3 years ago
3 0
Result
9
4
+
2
3
=
35
12
=
2 11
12
Result in decimals: 2.9166666666667

Calculation steps:
9
4
+
2
3
=
9 × 3
4 × 3
+
2 × 4
3 × 4
=
27
12
+
8
12
=
27 + 8
12
=
35
12
=
2 11
12
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The total volume of a tree increases 6% each year. what will its volume be after 7 years if its volume is 5 cubic meters now?
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Answer:

7.52 m^3

Step-by-step explanation:

This is like compound interest in a banking calculation

Future volume = 5 (1 + .06)^7 = 7.52 m^3

4 0
2 years ago
A class has 4 boys and 10 girls what is the ratio in the simplest form that compares numbet boys to total number of students
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Answer: 2 : 7

Step-by-step explanation:

Number of boys = 4

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Therefore , the ratio in the simplest form that compares number of  boys to total number of students is given by

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6 0
3 years ago
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Zepler [3.9K]

<u>Answer</u>: No, we do not have sufficient evidence to conclude that the mean call duration, µ, is different from the 2010 mean of 9.4 minutes.

Step-by-step explanation:

As per given , we have

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Since population standard deviation is unknown, so we use t-test.

Critical value (two-tailed) for significance level of 0.01= t_{n-1,\alpha/2}=t_{49, 0.005}\pm2.609228

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t=\dfrac{8.6-9.4}{\dfrac{4.8}{\sqrt{50}}}\approx-1.18

Since test statistic value (-1.18) lies in critical interval (-2.609228, 2.609228), it means the null hypothesis is failed to reject.

We do not have sufficient evidence to conclude that the mean call duration, µ, is different from the 2010 mean of 9.4 minutes.

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3 years ago
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Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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