I have to form a couple of equations in order to solve it.
let the amount of soybean in the mixture be x and that of cornmeal be y
Step-by-step explanation:
x+y = 280
y = 280 - x
x*(14/100) + y*(7/100) = 280*(12/100)
Multiplying the whole equation by 100;
14x + 7y = 3360
in this equation,put y = 280 - x
14x +7 (280-x) = 3360
14x +1960 - 7x = 3360
14x - 7x = 3360 - 1960
7x = 1400
x = 200lbs
y = 280 - x
= 280 - 200
= 80 lbs
Inorder to make a 280lbs mixture having 12% protein, we should mix 200lbs of soyabean and 80 lbs of cornmeal
Science = 14 x 6 = 84
so equation
y = 12x + 84
your answer is correct
The mother is 33 years old and the child is 11 because if you divide 33 by 11 you will get 3. Then if you add 11 to both ages you will get 44 for the mother and 22 for the child. Finally you divide 44 by 22 to get 2.
I don’t know I’m just doing this for the points I’m sorry ☮️✌️
The value of the card was $13 when he originally purchased it.
