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2 years ago

WHAT IS 225/100 IN DECIMALS AND PERCENTAGES

Mathematics

2 answers:

Alex_Xolod [135]2 years ago

7 0

Answer:

2.25 and 225%

Step-by-step explanation:

Ivahew [28]2 years ago

3 0

That would be 225% and 2.25 I really hope this helps!!

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2. In a given population of two-earner male-female couples, male earnings have a mean of $40,000 per year and a standard deviati

Kobotan [32]

Answer: $85,000

Step-by-step explanation:

Given : In a given population of two-earner male-female couples, male earnings have a mean of $40,000 per year and a standard deviation of $12,000.

$\mu_M=40,000\ \ ;\sigma_M=12,000$

Female earnings have a mean of $45,000 per year and a standard deviation of $18,000.

$\mu_F=45,000\ \ ;\sigma_F=18,000$

If C denote the combined earnings for a randomly selected couple.

Then, the mean of C will be :-

$\mu_c=\mu_M+\mu_F\\\\=40,000+45,000=85,000$

Hence, the mean of C = $85,000

8 0

2 years ago

A sample of 36 observations is selected from a normal population. The sample mean is 12, and the population standard deviation i

velikii [3]

Answer: One tail test.

Step-by-step explanation:

Given : A sample of 36 observations is selected from a normal population. The sample mean is 12, and the population standard deviation is 3.

Also, The set of hypothesis to conduct a test :-

$H_0:\mu\leq10\\\\H_1:\mu>10$

The kind of test need to perform is dependent upon the alternative hypothesis.

Since, the alternative hypothesis is one tailed (right-tailed), so the test is one tail test.

5 0

3 years ago

HELP BRAINLEST GUARANTEED

Liono4ka [1.6K]

Answer:

6% , 800$

Step-by-step explanation:

to answer the question we can use this proportion :

x : 100 = 30 : 500

x = (100*30)/500

x = 6%

for calculate the amount after 10 years we can use this formula

A = P(1+rt)

where P indicates the initial amount, r the rate (in decimal) and t the time of investment

A = 500(1 + 0,06 x 10) = 500(1 + 0,6) = 500(1,6) = 800 $

6 0

2 years ago

Hey i need some help :)

melamori03 [73]

Answer:

[See Below]

Step-by-step explanation:

$\boxed{Hey~There!}$

__________________________________________________________

$\boxed{Solve~-3x$

Rearrange the equation by subtracting what is to the right of the greater than sign (≤, ≥) from both sides of the inequality:

$-3*x-(9)$

Pull out like factors:

$-3x - 9 = -3 * (x + 3)$

Divide both sides by $-3$ :

Remember to flip the inequality sign:

Subtract $3$ from both sides:

$x > -3$

$\boxed{The~answer~is: x > -3}$

$\boxed{The~answer~is: C}$

__________________________________________________________

$Hope~this~helps~Mate!\\-Your~Friendly~Answerer,~Shane$ ^-^

8 0

2 years ago

If you work for an hourly wage, your gross pay is a function of the number of hours that you work. If you earn $8 per hour, comp

Sonja [21]

Answer:

The answer is D

Step-by-step explanation:

You multiply the number of hours by 8 to calculate gross pay. Then you form coordinates. In this problem for example (0,0); (3,24); and so on.

Hope this helps!

8 0

2 years ago