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Lady_Fox [76]
3 years ago
11

Question #55

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
7 0
Lets make a proportion with the information we know. For every 1000, 8 of tax is paid.

8/1000

Then, use the rest of the information to make another proportion. We don’t know how much the tax is, so let’s call it x.

x/150000

Set the equations equal to each other

8/1000=x/150000

Cross multiply

1000x=1200000

Divide by 1000 on both sides

x=1200
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A study conducted in 2000 found that the mean number of children under 18 per household in a certain community was 1.7. A statis
Margarita [4]

Answer:

c). Two tailed test

Step-by-step explanation:

The given hypothesis are

Null hypothesis: H0:μ= 1.7

Alternative hypothesis: H1:μ≠ 1.7

The alternative hypothesis demonstrates that  mean number of children are not 1.7 in 2000. This means that mean number of children can be greater than 1.7 or mean number of children can be less than 1.7. Thus, the given alternative hypothesis indicates the two tailed test.

3 0
3 years ago
Maggie’s brother is three years younger than twice her age. The sum of their ages is 24. How old is maggie?
JulsSmile [24]

To solve this problem, we must set up a system of equations. In this case, let's let Maggie's age be represented by the variable m and her brother's age be represented by the variable b. We are told that the sum of their ages is 24, which gives us our first equation: m + b = 24. We can construct our next equation from the first sentence of given information: b = 2m - 3. This makes our system of equations:

m + b = 24

b = 2m - 3

To solve, we are going to substitute the value for b in terms of m given by the second equation into the first equation for the variable b.

m + b = 24

m + 2m - 3 = 24

To simplify, we must first combine the variable terms on the left side of the equation using addition.

3m - 3 = 24

Next, we should add 3 to both sides of the equation to get the variable term alone on the left side of the equation.

3m = 27

Finally, we should divide both sides by 3 in order to get the variable m alone.

m = 9

Therefore, Maggie is 9 years old (using the first equation and substituting in this value you can find that her brother is 15 years old).

Hope this helps!

8 0
3 years ago
Read 2 more answers
What is the slope line of D?
aalyn [17]

Answer:

2/5 (rise over run)

Step-by-step explanation:

6 0
3 years ago
8x8-5x20<br><br> 12<br> 45<br> 64<br> -36<br> -15<br> -10
Orlov [11]
-36 because 64-100 (separate the terms)
6 0
2 years ago
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Help number 5 15 pointsss
r-ruslan [8.4K]

Answer:

x=101

Step-by-step explanation:


8 0
3 years ago
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