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Lesechka [4]
2 years ago
12

How do you find a percent of a number PLEASE HEP

Mathematics
1 answer:
liberstina [14]2 years ago
5 0
How to calculate percentage of a number. Use the percentage formula: P% * X = Y
Convert the problem to an equation using the percentage formula: P% * X = Y.
P is 10%, X is 150, so the equation is 10% * 150 = Y.
Convert 10% to a decimal by removing the percent sign and dividing by 100: 10/100 = 0.10.
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Julia’s service at a beauty salon was $72.60, before tax. The sales tax rate was 8%. If she added 20% of amount before tax as a
Nutka1998 [239]
Your tax is $5.81
Your tip is $14.52
Your total is $92.93
6 0
3 years ago
Robert takes a roast out of the oven when the internal temperature of the roast is 165°F. After 15 minutes, the temperature of t
faust18 [17]

Step-by-step explanation:

Rate of drop of temperature = Change in temperature/Rate

=> (165 - 135)/15

=> 30/15

=> 2 ⁰F/min

Now, The time at which the temperature of will be 70⁰F = 70/Rate

=> 70/2

=> 35 min

Time for 110⁰ F

=> 110/2

=> 55 min

6 0
2 years ago
5. Sketch the solution set of the system x > or equal to 0, y < 3, x - y > 1, y > 2x-1.​
laiz [17]

Answer:

8w-ddje

Step-by-step explanation:

8 0
3 years ago
A group of students entered the museum at 3:30 pm and came out at 5:15. how long were they in the museum ?
aksik [14]

Answer:

1 hour and 45 minutes

Hope this helped, have a nice day! :)

8 0
3 years ago
en un colegio mixto hay x estudiantes distribuidos en c cursos. Si hay m niños por curso, ¿Cuantas niñas hay en el colegio?
Tomtit [17]

La ecuación que nos dice cuantas niñas hay en el colegio es:

A = x - c*m

¿Como encontrar una expresión para la cantidad de niñas?

Sabemos que hay un total de x estudiantes, definimos las variables:

  • A = cantidad total de niñas
  • B = cantidad total de niños.

Entonces tenemos A + B = x

Tambien sabemos que los estudiantes estan divididos en c cursos, de tal forma que hay m niños por curso.

Entonces c por m es igual a la cantidad total de niños:

c*m = B

Reemplazando esto en la ecuación de arriba podemos obtener:

A + c*m = x

A = x - c*m

Esta es la ecuación que nos da el numero total de niñas en el colegio.

Sí quieres aprender más sobre ecuaciones, puedes leer:

brainly.com/question/18168483

4 0
2 years ago
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