Responder:
Copias del libro A = 50
Copias del libro B = 70
Explicación paso a paso:
Costo por libros A = 200
Costo por libro B = 150
Sea el número de libros A = x
Número de libros B = y
Número total de libros comprados = 120
Costo total = 20,500
x + y = 120 - - - (1)
200x + 150y = 20500 - - - (2)
De 1)
x = 120 - y
Sustituya x = 120-y en (2)
200 (120 - años) + 150y = 20500
24000 - 200y + 150y = 20500
24000 - 50y = 20500
-50 años = 20500 - 24000
-50y = - 3500
y = 70
x = 120 - y
x = 120 - 70
x = 50
2x - 5 > 7 |add 5 to both sides
2x > 12 |divide both sides by 2
x > 6
<h3>Answer: A. x > 6</h3>
R= 5
You divide -7 by both sides to 1. Cancel out the -7 2. To simplify the -35. So simplified -35/-7=5
Hello There!
It would be $60
Hope This Helps You!
Good Luck :)
- Hannah ❤
8/ 712 is 72
First see if 8 can go into 71
8 goes into 71 8 times then subtract 71 and 64 since 8*8 is 64
Finally you will get the solution 72 so find how many time 8 can go into 72 and that will be 9.
Answer:89
