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svet-max [94.6K]
3 years ago
13

Donna makes $9.75 per hour at her job. Kaylee makes $4 per hour at her job, and she receives a $0.25 raise each month.

Mathematics
1 answer:
Korvikt [17]3 years ago
8 0

Answer:

The number of months it will take for Kaylee to make as much as Donna is 23 months

Step-by-step explanation:

Here we have amount Donna makes = $9.75/hour

Amount Kaylee makes = $4/hour with $0.25 monthly raise

Therefore, number of months, Y before Kaylee makes as much s Donna is given by the following expression;

4 + Y × 0.25 = 9.75

0.25·Y = 9.75 - 4 = 5.75

Therefore, \ Y = \frac{5.75}{0.25} =23 \ months

That means in 23 months, Kaylee will make as much as Donna per hour.

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Please answer this correctly without making mistakes I want ace expert and genius people to answer this correctly without making
soldi70 [24.7K]

Answer:

yz + z = -22

Step-by-step explanation:

Ok so you are already the number that y = 10 and z = -2. You will plug these number in the equation in order to find the answer. :-

y = 10 and z = -2

yz + z

<u>10(-2)</u> - 2

<u>-20 - 2</u>

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Hope this helps, thank you :) !!

6 0
3 years ago
Each year, all final year students take a mathematics exam. It is hypothesized that the population mean score for this test is 8
drek231 [11]

Answer:

95% Confidence interval:  (96.06,103.94)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 85

Sample mean, \bar{x} = 100

Sample size, n = 30

Alpha, α = 0.05

Population standard deviation, σ = 11

95% Confidence interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

100 \pm 1.96(\frac{11}{\sqrt{30}} ) = 100 \pm 3.94= (96.06,103.94)

(96.06,103.94) is the 95% confidence interval for  the population mean test score.

8 0
3 years ago
Find an expression for the nth term of the arithmetic sequence.<br><br> 2, 8, 14, 20, 26, . . .
IceJOKER [234]

Answer:

44

Step-by-step explanation:

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8 0
2 years ago
How do you tell a triangle is not a right triangle
garri49 [273]
You can tell when you cant draw an even L shaped figure at the intersects of the bottom and the side. 90 degrees. But there are many different ways that may make more sense. Happy to help:)
7 0
3 years ago
Read 2 more answers
4 + 5x = 3 (-x + 3) -11
Salsk061 [2.6K]

Answer:

4 + 5x = 3 (-x + 3) -11

4+5x=-3x+9-11

5x+3x=9-11-4

8x= -6

x= -0.75

8 0
3 years ago
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