Argumento propongo Modelo Ejercito soluciono problemas caso.
tica?
ión
Relaciona cada expresión de la columna izquierda
con una expresión de la derecha, para formar tres
proposiciones verdaderas y dos proposiciones falsas.
Luego, escríbelas en tu cuaderno.
16. 28
a. es un cuerpo geométrico.
17. El delfin
b. es un múltiplo de 7.
18. El cubo
c. vive en el agua.
19. La estrella de mar d. es un divisor de 17.
20.34
e. tiene forma de pentágono.

what are you trying find out?

step-by-step explanation:

delaney would like to make a 5lb nut mixture that is 60% peanuts and 40% almonds.

she has several pounds of peanuts and several pounds of a mixture that is 20% peanuts and 80% almonds.

let 'p' represent the number of pounds of peanuts needed to make the new mixture, and  

let 'm' represent the number of pounds of the 80% almond-20% peanut mixture.

:

p + m = 5

therefore

m = (5-p)

write an equation based on the percent of peanuts

1p + .2m = .6(5)

replace m with (5-p)

p + .2(5-p) = .6(5)

p + 1 - .2p = 3

p - .2p = 3 - 1

.8p = 2

p = 2/.8

p = 2.5 lbs of peanuts required

then

5 - 2.5 = 2.5 lbs of the peanut/almond mixture required

:

a) what is the system that models this situation?

p + m = 5

1p + .2m = .6(5)