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otez555 [7]
3 years ago
10

Celeste and Dora both offer guitar lessons. Celeste charges an initial fee of $5.00, and an hourly rate of $7.25. Dora has an in

itial fee of $10.25, and an hourly rate of $6.50. The equation 7.25h + 5 = 6.5h + 10.25 represents the scenario. At how many hours of instruction will the cost be the same for both instructors?
Mathematics
2 answers:
Sati [7]3 years ago
5 1

Answer:So you just need to multiply different numbers in place of the x untill you find the correct answer or you could solve 7.25+5 and 6.5+10.25 then multiply eacch by one number n place of x until you find the answer.

Step-by-step explanation:


laila [671]3 years ago
4 0

If they both do 7 hours, then the price will total out at $55.75 for both. Not sure if you have a formula from your book, but common sense/guestimating gets you that correct answer.

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Given that lines a and b are parallel and that m∠5 = 120°, find m∠1.
BARSIC [14]

Answer:

answer will be 120°

Step-by-step explanation:

as those are similar angles

8 0
3 years ago
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What is the equation of the line perpendicular to the line y = 3x + 2 and passing through the point (3, -4)?
In-s [12.5K]

Answer:

Step-by-step explanation:

perp. -1/3

y + 4 = -1/3(x - 3)

y + 4 = -1/3x + 1

y = -1/3x - 3

4 0
3 years ago
Tickets to a concert cost $2 for children, $3 for teenagers and $5 for adults. When 570 people attended the concert, the total t
Ilia_Sergeevich [38]

Answer: 220

<u>Step-by-step explanation:</u>

Children (x): $2

Teens (y): $3, \frac{3}{4}x

Adults: (z): $5

Quantity: x + y + z = 570  ⇒  x + \frac{3}{4}x + z = 570  ⇒ 1.75x + z = 570  

Cost: 2x + 3y + 5z = 1950  ⇒  2x + 3(\frac{3}{4}x) + 5z = 1950  ⇒  2x + 2.25x + 5z = 1950  ⇒  4.25x + 5z = 1950

Qty:    1.75x +  z =  570  →  5(1.75x +  z =  570)  →    8.75x + 5z = 2850

Cost: 4.25x + 5z = 1950 → -1(4.25x + 5z = 1950 → <u> -4.25x - 5z</u> = <u>-1950 </u>

                                                                                  4.50x        =   900

                                                                                          x       =    200

Teens (y): \frac{3}{4}x

           y = \frac{3}{4}(200)

             = \frac{600}{4}

             = 150

Quantity: x + y + z = 570  

              200 + 150 + z = 570

                     350     + z = 570

                                    z = 220


6 0
3 years ago
HELP URGANT???????!!!!!
Serga [27]

Answer:

answer is b

Step-by-step explanation:

4 0
3 years ago
Use calculus to find the volume of the following solid S S : The base of S is a circular disk with radius r. Parallel cross-sect
choli [55]

Answer:

The correct answer is: A = 1/2 bh V = integral A(x) from [-r, r].

Step-by-step explanation:

x^2 +y^2 = r^2 A = 1/2 bh b = 2y = 2sqrt[r^2 - x^2] so that gives A = 1/2 [ 2sqrt(r^2 - x^2)]h which gives A = sqrt[r^2 - x^2]h

8 0
3 years ago
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