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serg [7]
2 years ago
9

Can someone hurry please tell me the answer I will mark brainless

Mathematics
1 answer:
Licemer1 [7]2 years ago
7 0

Answer:

C) z = 1/2

Step-by-step explanation:

4z + 5 = 7

4z = 2

z = 1/2

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Solve for x<br><br> 6x + 3 - 1/2 x = -2x +5
UkoKoshka [18]
<span>First, group the x values together (on one side) and the other values on the other.

  6x + 3 - 1/2 x = -2x +5
6x - 1/2 x + 2x = 5 - 3

Now solve!

     7 and 1/2 x = 2
                      x = 8

Hope this helps!</span>
6 0
3 years ago
The mean hourly wage for employees in goods-producing industries is currently $24.57 (Bureau of Labor Statistics website, April,
SSSSS [86.1K]

Answer:

Step-by-step explanation:

a) H0: \bar x = 24.57

Ha: \bar x \neq 24.57

(Two tailed test at 5% significance level)

b) n=30

Mean difference = 23.89-24.57 = - 0.68

Std error of mean = \frac{s}{\sqrt{n} } \\=\frac{2.40}{\sqrt{30} } \\=0.4382

b) Test statistic t = mean diff/std error = -1.552

df = 30-1 =29

p value=0.0657

c) Since p > 0.05 our signi. level, we accept null hypothesis.

There is no significant difference between the means.

d) Using critical value we find that test statistic is > critical value left

So accept H0

8 0
3 years ago
The sum of 5 times a number and 4 is equal to 6
g100num [7]

Answer:

5(x+4)=6

5 times a number and (+) 4 is equal to 6.

7 0
3 years ago
Cedric opened a new gallon jug of milk and poured ¾ cup of milk for his mom, ½ cup milk for his little sister and 2 cups of milk
julia-pushkina [17]

Answer:

12 _3/4

Step-by-step explanation:

3/4 + 1/2 + 2 = 3_1/4

16 cups in a gallon

16-3_1/4

=12_3/4

7 0
3 years ago
It took 5 hours to mow 4 lawns. At that rate, how long would it take to mow 7 lawns?
Elanso [62]
1.25 hours for each lawn. 1.25 x 7 = 8.75.
8 0
3 years ago
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