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Gemiola [76]
4 years ago
15

There is a proportional relationship between the amount of time (in hours) that Savannah practices the piano, x, and how many do

llars she earns, y.
What is the constant of proportionality? Write your answer as a whole number or decimal.



______ dollars per hour



A 1dollar


B 3 dollar


C 4 dollar

D 5 dollar

Mathematics
1 answer:
nirvana33 [79]4 years ago
8 0
The answer is option c
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Christopher earns $5. 80 an hour and time-and-a-half for all hours over 40 hours. How much did he earn the week he worked 44. 5
Monica [59]

Answer: $271.15

Step-by-step explanation:

$5.80 × 40 = 232

Time and a half = $8.70  

Overtime is 4.5 hours

$8.70 × 4.5 = 39.15

$232 + 39.15 = 271.15

6 0
2 years ago
An experiment consists of flipping a single coin followed by rolling a six-sided cube (a die).
Over [174]

Answer:\frac{1}{12}

Step-by-step explanation:

Okay, first, you want to find the probability of getting a head, which would be 1/2 because there are two options and we are only looking for one out of the two. Then, the probability of getting a 6 would be 1/6 because there is only one chance of getting a 6 and there are 6 options. Next, you would have to multiply both quantities to find out what the probability would be of getting both. So it would be \frac{1}{2} ×\frac{1}{6}=\frac{1}{12}

8 0
3 years ago
Read 2 more answers
How many questions did he get correct?​
romanna [79]

Answer:

15 questions correct

15/20 = 75%

each 5 questions is 25 percent of the 100% so 3 x 5 = 15 = 75%

Step-by-step explanation:

4 0
3 years ago
Find tan(450-a), If <br><img src="https://tex.z-dn.net/?f=%20%5Ctan%28a%29%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20" id="TexFormula1"
Inessa05 [86]

Answer:

tan(450-a)=5\sqrt{3}-8

Step-by-step explanation:

We know that:

tan(a-b)=\frac{tan(a)-tan(b)}{1+tan(a)tan(b)}

tan(450-a)=\frac{tan(450)-tan(a)}{1+tan(450)tan(a)}

Remember:

450°=360°+60°

and:

tan(a)=\frac{1}{2}

Thus:

tan(450-a)=\frac{tan(60)-tan(a)}{1+tan(60)tan(a)}\\\\

Then:

tan(450-a)=5\sqrt{3}-8

4 0
3 years ago
Solve the equation. Check your solution. - 6y + 5 = 29y - 2​
mr_godi [17]

Answer:

y = 0.2

Step-by-step explanation:

Simplifying

-6y + 5 = 29y + -2

Reorder the terms:

5 + -6y = 29y + -2

Reorder the terms:

5 + -6y = -2 + 29y

Solving

5 + -6y = -2 + 29y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-29y' to each side of the equation.

5 + -6y + -29y = -2 + 29y + -29y

Combine like terms: -6y + -29y = -35y

5 + -35y = -2 + 29y + -29y

Combine like terms: 29y + -29y = 0

5 + -35y = -2 + 0

5 + -35y = -2

Add '-5' to each side of the equation.

5 + -5 + -35y = -2 + -5

Combine like terms: 5 + -5 = 0

0 + -35y = -2 + -5

-35y = -2 + -5

Combine like terms: -2 + -5 = -7

-35y = -7

Divide each side by '-35'.

y = 0.2

Simplifying

y = 0.2

3 0
3 years ago
Read 2 more answers
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