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stellarik [79]
3 years ago
13

Will mark right answer brainliest!

Mathematics
1 answer:
Georgia [21]3 years ago
5 0

Answer:

1/12

Step-by-step explanation:

3/4 + -2/3

Get a common denominator of 12

3/4 *3/3 - 2/3 *4/4

9/12 - 8/12

1/12

You might be interested in
441 is 63% of what number
blagie [28]
<span>Question: 441 is 63% of what number?
=> 63% = 63% / 100% = 0.63
Since 441 is the 63% let’s find the value of 37% to get the toal of 100%
Solution, follow the formula
=> 0.63x = 441 – where x will be the value of the missing 100% value.
=> x = 441 / 0.63
=> x = 700 – the 100% value that have 441 as 63%
let’s check if we have the correct answer:
=> 700 * .63 = 441 </span>



6 0
4 years ago
The 2010 General Social Survey reported a sample where about 48% of US residents thought marijuana should be made legal. If we w
Sati [7]

Answer:

The sample size is  n  = 600

Step-by-step explanation:

From the question we are told that

    The  sample proportion is  \r  p = 0.48

     The  margin of error is  MOE  =  0.04

Given that the confidence level is 95%  the level of significance is mathematically represented as

        \alpha  =  100 - 95

        \alpha  =  5 \%

        \alpha  =  0.05

Next  we obtain the critical value of  \frac{\alpha }{2} from the normal distribution table , the values is

                   Z_{\frac{\alpha }{2}  } =  1.96

The reason we are obtaining critical value of    \frac{\alpha }{2} instead of    \alpha is because  

\alpha represents the area under the normal curve where the confidence level interval (  1-\alpha) did not cover which include both the left and right tail while  

\frac{\alpha }{2} is just the area of one tail which what we required to calculate the margin of error

Generally the margin of error is mathematically represented as

      MOE  =  Z_{\frac{\alpha }{2} } *  \sqrt{ \frac{\r p(1-  \r p )}{n} }

substituting values

          0.04= 1.96*  \sqrt{ \frac{0.48(1-  0.48 )}{n} }

         0.02041 = \sqrt{ \frac{0.48(52 )}{n} }

         0.02041 = \sqrt{ \frac{ 0.2496}{n} }

          0.02041^2  = \frac{ 0.2496}{n}

           0.0004166 = \frac{ 0.2496}{n}

=>       n  = 600

   

5 0
3 years ago
A rectangle is four times as long as it is wide. If it has an area of 36 square inches, what are its dimension?.
vivado [14]

Answer:

b on edge

Step-by-step explanation:

3 0
3 years ago
What number is 44 % of 840
sattari [20]
It's 369.6 
(840X44)/100 = 369.6
4 0
4 years ago
Read 2 more answers
"I can't help but think that if the average American had a better understanding of how loans worked the housing crisis might hav
yKpoI14uk [10]
I agree with this quote, as not understanding how loans work can be very damaging. Americans should be more educated on how loans work and could lower the about of student loans because $1 million is way more over priced then it has to be, if people were only more educated.
5 0
3 years ago
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