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2 years ago

A store bought a tent for $230 and

Mathematics

1 answer:

MatroZZZ [7]2 years ago

8 0

Answer:

409.86

Step-by-step explanation:

230×.65=149.50

230+149.50=379.50×.08=30.36

379.50+30.36=409.86

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vodka [1.7K]

Answer:

28 ft

Step-by-step explanation:

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2 years ago

How would I solve this equation by showing my worki on each side? X divided by 10= 7

Sav [38]

Answer:

x=70

Step-by-step explanation:

x/10=7

First you need to get the x by itself, so you should do the opposite of what is happening to the x.

In this case the x is being divided so you would need to multiply.

So multiply the x by 10 and this gets it by itself.

But you have to do to one side what you do to the other.

So multiply the other side by 10 as well!

This equals x=70

To show work on both sides, show the multiplication of both sides by 10

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3 years ago

The chart below shows the average number of movies seen per person in selected countries. Use equal intervals to make a frequenc

NARA [144]

To make a frequency table, you will need to find the lowest and highest average number of movies.

Numbers go from 0.5 to 4.5.
And example of frequencies you could use are:

0-0.9 (1)
1-1.9(5)
2-2.9(5)
3-3.9(2)
4-4.9(1)

The frequencies are in parentheses beside the intervals.

6 0

2 years ago

The ratio of boys to girls in a class is 2:3 There are 6 more girls than boys in the class. How many girls are in the class?

kolbaska11 [484]

Answer:

Step-by-step explanation:

ratio= 2:3

2 : 3

B : G

0 : 6

3*2=6

2*2= 4

7 0

2 years ago

Read 2 more answers

NASA is conducting an experiment to find out the fraction of people who black out at G forces greater than 6. In an earlier stud

SSSSS [86.1K]

Answer:

The large sample n = 190.44≅190

The large sample would be required in order to estimate the fraction of people who black out at 6 or more Gs at the 85% confidence level with an error of at most 0.04 is n = 190.44

Step-by-step explanation:

Given population proportion was estimated to be 0.3

p = 0.3

Given maximum of error E = 0.04

we know that maximum error

$M.E = \frac{Z_{\alpha } \sqrt{p(1-p)} }{\sqrt{n} }$

The 85% confidence level $z_{\alpha } = 1.44$

$\sqrt{n} = \frac{Z_{\alpha } \sqrt{p(1-p)} }{m.E}$

$\sqrt{n} = \frac{1.44X\sqrt{0.3(1-0.3} }{0.04}$

now calculation , we get

√n=13.80

now squaring on both sides n = 190.44

large sample n = 190.44≅190

Conclusion:-

Hence The large sample would be required in order to estimate the fraction of people who black out at 6 or more Gs at the 85% confidence level with an error of at most 0.04 is n = 190.44

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2 years ago