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Anvisha [2.4K]
3 years ago
11

The speed of light is 3•10m/s. How many kilometers per hour is it?

Mathematics
1 answer:
Leya [2.2K]3 years ago
8 0

Answer:

11.16km/hr

Step-by-step explanation:

3.10×18/5

=11.16km /hr

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If x= –4 and y= 3 , what is the value of x–3y2 ?
Tpy6a [65]

Answer:

-31

Step-by-step explanation:

(-4)-3(3)^2

-4-3(9)

-4-27=-31

5 0
3 years ago
Read 2 more answers
Two nimbers have a product of 90 and a sum of 19. What are the two numbers?​
bulgar [2K]

Answer:

9 + 10 = 19 product is 9 x 10 = 90 9^2 + 10^2 = 181

6 0
2 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
7x+7+2z+9= please help me
fiasKO [112]

Answer:

7x+2z+16

Step-by-step explanation:

find like terms

7 9

add them

7+9=16

7x+2z+16

8 0
2 years ago
Saul earned $25 for painting his neighbor's fence. He spent $11 at the store and put the rest into his bank account.
PtichkaEL [24]
The answer is $14 Saul put into his bank accout
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2 years ago
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