Answer:
5x - 322= ?
5x - 322 + 322 = 322
5x = 322
5/5x = 322/5
x = 64.4
Step-by-step explanation:
Answer:
Step-by-step explanation:
If 60% or .60 of a number is 66, then we write and equation to solve for the original number, x.
.6x = 66 Divide each side by .6
.6x/.6 = 66/.6
x = 66/.6
x = 110
as a proportion it would be:
60:100 = 66:110
Answer:
whats up shay
Step-by-step explanation:
whats up lynn
Answer:
<em>El administrador debe usar 37.5 litros de jugo al 5% y 12.5 litros de jugo al 25%.</em>
Step-by-step explanation:
<u>Sistemas de Ecuaciones</u>
Llamamos:
x = litros de jugo al 5% natural
y = litros de jugo al 25% natural
El administrador de la cafetería desea hacer 50 litros de jugo, luego:
x + y = 50 [1]
Esos 50 litros de jugo deben tener 10% de jugo natural. Como cada parte de x aporta 5% y cada parte de y aporta 25%:
5x + 25y = 10*50 = 500
Dividimos entre 5:
x + 5y = 100 [2]
Restamos [2] menos [1]:
4y = 50
y = 50/4 = 12.5
De [1] tenemos que:
x = 50 - y = 50 - 12.5 = 37.5
El administrador debe usar 37.5 litros de jugo al 5% y 12.5 litros de jugo al 25%.
