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Yanka [14]
3 years ago
6

A) 4(x+1)=5x+12

Mathematics
2 answers:
ch4aika [34]3 years ago
5 0
A.
4x+4=5x+12
4=x+12
x=-8

B.
13(6-x)-4(3x+12)=0
78-13x-12x-48=0
30-25x=0
25x=30
x=1.2

C.
9(2x+7)=<span>0.5(32x+6)
18x+63=16x+3
2x+63=3
2x=-60
x=-30

D.
</span><span>8x –3(5x–2)=7–10x
8x-15x+6=7-10x
-7x+6=7-10x
3x=1
x=1/3

So, A = -8 B = 1.2 C = -30 and D. = 1/3</span>
mezya [45]3 years ago
3 0
Hey there!

Here is ur answer >>>>

A) 4(X + 1 ) = 5x + 12

4x + 4 = 5x + 12

X = 4 - 12

X = -8

B) 13 ( 6 - x ) - 4 ( 3x + 12 ) = 0

78 - 13x - 12x - 48 = 0

30 - 25x = 0

30 = 25x

X = 30/25

X = 6/5

All of them are solved in these methods

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Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
public accountant financial planner 50.2 48.0 59.8 49.2 57.3 53.1 59.2 55.9 53.2 51.9 56.0 53.6 49.9 49.7 58.5 53.9 56.0 52.8 51
ddd [48]

Using the formula of test statistic, the value of the test statistic is 2.6961.

The mean of the public accountant is

Mean x(p) =50.2+59.8+57.3+59.2+53.2+56.0+49.9+58.5+56.0+51.9/10

x(p) = 55.2

Now the standard deviation of public accountant is

SD(p) = √{∑(x-x(p))^2/n-1}

SD(p) = √(50.2-55.2)^2+(59.8-55.2)^2+..................+(51.9-55.2)^2/n-1

After solving;

SD(p) = 3.34

The mean of the financial planner is

Mean x(F) =48.0+49.2+53.1+55.9+51.9+53.6+49.7+53.9+52.8+48.9/10

x(F) = 51.6

Now the standard deviation of financial planner is

SD(F) = √{∑(x-x(p))^2/n-1}

SD(F) = √(48.0-51.6)^2+(49.2-51.6)^2+..................+(48.9-51.6)^2/n-1

After solving;

SD(F) = 2.57

Test Statistic (t) = \frac{x(P)-x(f)}{\sqrt{\left(\frac{(n(p)-1)s(p)^2+(n(f)-1)s(f)^2}{n(p)+n(f)-2}\left(\frac{1}{n(p)}+\frac{1}{n(f)}\right)\right)}}

t = \frac{55.2-51.61}{\sqrt{\left(\frac{(10-1)(3.34))^2+(10-1)(2.57)^2}{10+10-2}\left(\frac{1}{10}+\frac{1}{10}\right)\right)}}

After solving

t = 2.6961

Hence, the value of the test statistic is 2.6961.

To learn more about test statistic link is here

brainly.com/question/14128303

#SPJ4

The right question is

public accountant  50.2  59.8  57.3  59.2  53.2  56.0  49.9  58.5  56.0  51.9

financial planner   48.0  49.2  53.1   55.9  51.9   53.6  49.7  53.9 52.8  48.9

Use a 0.05 level of significance and test the hypothesis that there is no difference between the starting annual salaries of public accountants and financial planner

Find the value of the test statistic.

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1 year ago
55&lt;35+10x<br><br> What is x less than
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Hi!

55<35+10x

Move 35 to the left, using the opposite operation:

55-35<10x

20<10x

Divide both sides by 10:

2<x

Since 2 is greater than x, x is less than 2:

x<2 (Answer)

Hope it helps!

Enjoy your day!

~Misty~

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The number between 1 and 10: 1
The power of 10: 6
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The power of 10: 4
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125s- 0

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