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AVprozaik [17]
2 years ago
7

Stephen was thinking of a number. Stephen halves it and gets an answer of 12.8. What was the original number?

Mathematics
1 answer:
dusya [7]2 years ago
8 0

x----number Stephen

x:2=12,8

1/2x=12,8 /*2

x=25,6

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A large employer gives each new hire an aptitude test, which is scored from 1 to 20. Let T be a worker's score on the test. The
MatroZZZ [7]

Answer:

A woman paid 1.6 more than a man when both scored a 10 on the test.

Step-by-step explanation:

Let T be a worker's score on the test.

The firm then pays the new worker a wage of

w=0.6T+0.4G

where G is the average test score for the worker's gender 16 for women; 12 for men.

We need to find how much more is a woman paid than a man when both scored a 10 on the test.

The wage of a woman who scored 10 on the test is

w_1=0.6(10)+0.4(16)

w_1=6.0+6.4=12.4

The wage of a man who scored 10 on the test is

w_2=0.6(10)+0.4(12)

w_2=6.0+4.8=10.8

The difference between wages is

w_1-w_2=12.4-10.8=1.6

Therefore a woman paid 1.6 more than a man when both scored a 10 on the test.

4 0
3 years ago
What constant do you need to add to each quadratic to complete the square?
babunello [35]

Answer:

1. 4

2. 16

3. 9

Step-by-step explanation:

Completing the square requires a quadratic in ax^2+bx=c form. Once in this form, calculate (\frac{b}{2})^2.

1. (\frac{b}{2})^2=(\frac{-4}{2})^2=4

2. (\frac{b}{2})^2=(\frac{-8}{2})^2=16

3. Requires you divide everything by 3 first.

\frac{3x^2+18x}{3} =\frac{249}{3} \\x^2+6x=81

(\frac{b}{2})^2=(\frac{6}{2})^2=9

6 0
3 years ago
If you’re using the inspection method, what constant term would you need in the numerator of this rational expression for (x+5)
Eva8 [605]
<span>If I am using the inspection method, the constant term that I would need in the numerator of this rational expression for (x+5) to be a common factor of (x^2+6x+14) / (x+5) is 11/(x+1)</span>
7 0
3 years ago
Read 2 more answers
How do I solve part b and c
OLEGan [10]

Answer:

part a: 52%

part b: 0.4

part c: 0.24

Step-by-step explanation:

For part one, you find the frequency of the number of people that are less that 20. You add the number of tics in each bar and you divide by the total.

so for part a it is (7+6+9+4)/ (7+6+9+4+4+12+8)

for part b you add up the values that are greater than 25(less than 35)

(12+8)/total

part c you find the number of people between 25 and 30

that's 12

over total

12/total

4 0
3 years ago
What would be the answer please explain
sp2606 [1]

Using the line of the best fit, the predicted student's score in English test is 48

<h3>How to determine the student's score in English?</h3>

From the question, we have:

Mathematics score = 60

The scores in English tests are plotted on the y-axis.

On the given graph, we have:

(x,y) = (60,48)

This means that when x = 60, the value of y is 48

This in other words means that the student's score in English test is 48

Read more about line of best fit at:

brainly.com/question/17261411

#SPJ1

6 0
2 years ago
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