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Aneli [31]
3 years ago
10

My allowance has increased $13 a week and is now $42. What was my old allowance?

Mathematics
2 answers:
faust18 [17]3 years ago
7 0
Your allowance was $29
inn [45]3 years ago
7 0

Answer:

29

Step-by-step explanation:

42-13=29

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High school students across the nation compete in a financial capability challenge each year by taking a National Financial Capa
Mekhanik [1.2K]

Answer:

A student have to score 1.28 standard deviations above the mean o be publicly recognized.

Step-by-step explanation:

If X \sim N (\mu, \sigma^{2}), then Z=\frac{X-\mu}{\sigma}, is a standard normal variate with mean, E (<em>Z</em>) = 0 and Var (<em>Z</em>) = 1. That is, Z \sim N (0, 1).

The distribution of these <em>z</em>-variates is known as the standard normal distribution.

In statistics, a standardized score is the number of standard deviations an observation or data point is above the mean.

Thus, <em>z</em>-scores are a type of standardized scores.

It is provided that the students who score in the top 13 percent in the National Financial Capability Challenge Exam are recognized publicly for their achievement by the Department of the Treasury.

Let <em>x</em> be score of the top 13%.

So, to be are recognized publicly for their achievement by the Department of the Treasury the probability of score <em>x</em> must be:

P (X < x) = 0.90

⇒ P (Z < z) = 0.90

The value of <em>z</em> for the above probability is:

<em>z </em>= 1.28

*Use a <em>z</em>-table.

Thus, a student have to score 1.28 standard deviations above the mean o be publicly recognized.

8 0
3 years ago
Read 2 more answers
The value of y varies directly with x, and y = 48 when x = 16. Find y when x = 176.
emmainna [20.7K]
Try to find what y is when x is equal to one.

48/16= 3

So, when x is 1, y is 3.

(1,3)

All you need to do is multiply 176 by 3 for the correct value of y.

176*3= 528

When x= 176, y= 528. (176,528)

I hope this helps!
~cupcake
5 0
3 years ago
Read 2 more answers
Can you help me ? please ??
natali 33 [55]
60 miles per hour
so 156 miles = 156 /60 = 2.6 hours 
0.6 x 60 = 36
so 2.6 hours  = 2 hours 36 minutes

Kim leaves Rotherham at 7: 30AM
7:30 AM + 2 hours 36 minutes = 10:06 AM

Answer
Kim arrives in London after 10AM





6 0
3 years ago
Plz help ill give 17 points thx
Blizzard [7]

Answer:

1:6 = 7:42

Step-by-step explanation:

6 0
2 years ago
What is the ratio of 140:160
levacccp [35]

Answer:

it reduces to 7:8

Step-by-step explanation:

just put it like a fraction like 140/160. it simplifies to 7/8

4 0
3 years ago
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