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Semenov [28]
3 years ago
8

Francis teaches the piano. He charges each student an enrollment fee of $100 plus $15 per hour of piano lessons. The average cos

t of lessons for a student per hour is $25.
If h represents the number of hours a student spends in lessons, which equation can be used to find the value of h?

Mathematics
2 answers:
ivann1987 [24]3 years ago
5 0
The first one should be right. Since the teacher is charging $15 per hour of the piano lesson then it can't be any of the answers of $100h. The answer can't be C, the third one, since you're adding the enrollment fee to the cost of every piano lesson it would be wrong to subtract the $100. Hope that helps
maks197457 [2]3 years ago
3 0
The answer will the answer on the top $25=$100+$15h over h
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Find the equation of the line with slope 2 that passes through the point (4,-8)
sesenic [268]

Step-by-step explanation:

Given point (4 , -8) , slope (m) = 2

Now

the equation of line is

y - y1 = m ( x - x1)

y +8 = 2 ( x -4)

y + 8 = 2x - 8

2x - 8 - 8 -y = 0

2x - y - 16 = 0

which is the required equation

3 0
3 years ago
At work, Elon takes a break 1/5​​ of each hour he works. He also takes a lunch break for 1/2​​ of an hour each day he works. Elo
Anton [14]

Answer:

h=50\ hours

Step-by-step explanation:

Let

h -----> the number of hours, Elon works during one 5​-day work week

we know that

12\frac{1}{2}\ h=\frac{12*2+1}{2}=\frac{25}{2}\ h

Elon’s break time must be equal to 1/2​​ of an hour multiplied by 5 days plus  1/5​​ multiplied by the total hours h

so

\frac{25}{2}=5(\frac{1}{2})+\frac{1}{5}h

Solve for h

Multiply by 10 both sides to remove the fraction

125=25+2h

2h=125-25

2h=100

h=50\ hours

8 0
3 years ago
Melanie’s bank account balance is $97 − . She needs to pay $55 to her cell phone carrier and $80 to the landscaper. She also exp
torisob [31]

Answer:

a 97- (55+80) +250

b Melanie has $212 left in her bank account.

Step-by-step explanation:

55 + 80 = 135

97 - 135 = -38

-38 +250 = 212

4 0
3 years ago
I would really appreciate it if someone could answer this I will give a brainlist:)
Allushta [10]
97 I think

Steps:
72^2 + 65^2= c^2
5184 + 4225= c^2
9409= c^2
C= 97
8 0
3 years ago
Read 2 more answers
I need to understand the solution.
Anika [276]

Answer:

A

Step-by-step explanation:

Rules:

odd x odd = odd

even x even = even

even x odd = even

even + even = even

odd + odd = even

odd + even = odd

We can determine whether 2a + 3b is odd if we have both statements because we know that a is odd and 2 is even, which means their product will be even. 3 is odd and b is odd, so their product will be odd. The sum of the even and odd will be odd.

If we have just the second statement we can determine the answer because anything multiplied by 2 is even.

So whether or not we know if a is odd, we know that 2a is even because 2 doubles everything which means it's divisible by 2 which means it's even.

However, statement 1 alone is not enough because if a is odd, then 2a is even. However, 3b can be even or odd depending on b. If b is odd, then 3b is odd. if b is even, 3b is even.

Therefore, if you have statement 2 you can answer the question but if you only have statement 1 then you also need statement 2

4 0
4 years ago
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