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tamaranim1 [39]
3 years ago
8

Solve for x: 4 over 5 x + 4 over 3 = 2x x = __________________ Write your answer as an improper fraction in simplest form. Use t

he "/" symbol for the fraction bar.
Mathematics
2 answers:
MissTica3 years ago
5 0

Answer:

x= 10/9, or 10 over 9

Step-by-step explanation:

hammer [34]3 years ago
4 0

Let's solve your equation step-by-step.

4/5x+4/3=2x

Step 1: Subtract 2x from both sides.

4/5x+4/3−2x=2x−2x

−6/5x+4/3=0

Step 2: Subtract 4/3 from both sides.

−6/5x+4/3−4/3=0−4/3

−6/5x=−4/3

Step 3: Multiply both sides by 5/(-6).

(5/−6)*(−6/5x)=(5/−6)*(−4/3)

x=10/9

Answer:

x=10/9

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A political action committee is interested in finding out what proportion of voters will
balandron [24]

Answer:

n=\frac{0.93(1-0.93)}{(\frac{0.09}{1.96})^2}=30.875  

And rounded up we have that n=31

Step-by-step explanation:

First we need to find the critical value for the margin of error desired. The confidence level is 0.95 so then the significance is \alpha=1-0.95=0.05 and the critical value for this case would be:

z_{\alpha/2} =\pm 1.96

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

And on this case we have that ME =\pm 0.09 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)  

The estimated proportion for this case is \hat p =0.93. And replacing into equation (b) the values from part a we got:

n=\frac{0.93(1-0.93)}{(\frac{0.09}{1.96})^2}=30.875  

And rounded up we have that n=31

4 0
3 years ago
Which property could be used to solve the equation below <br><br> x/8 = 4
Ivahew [28]

Answer:

Multiplication property of equality? Ik for sure the answer to the equation would be 32

Step-by-step explanation:

8 0
2 years ago
The reciprocal of 10 2/3​
Mashutka [201]
The reciprocal of 10 2/3 is 3/32
3 0
3 years ago
-4x+6(x-1) simplify algebraic expression
vladimir1956 [14]

Hey there

the answer is

−4x+6(x−1)

Distribute:

=−4x+(6)(x)+(6)(−1)

=−4x+6x+−6

Combine Like Terms:

=−4x+6x+−6

=(−4x+6x)+(−6)

=2x+−6

thank you

       .   OFFICIALLYSAVAGE2003

7 0
3 years ago
Riley buys a swim pass for the pool in January. The first month costs $30. Each month after that, the cost is $20 per month.
Zanzabum

Answer:

you pay 240 dollars a year

Step-by-step explanation:

y=20x

x is 12

20*12=

240

6 0
3 years ago
Read 2 more answers
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