Answer:
Step-by-step explanation:
3
Answer:
previous balance
Step-by-step explanation:
No no no no no no no no no jk its c your welcome
Answer: x= 29°
Step-by-step explanation: Add angles D and C. Subtract from 180.
58/2 = 29
Step-by-step explanation:
If x = the amount of 12% and y = the amount of 20%, then x + y = 80
Since we need 80 grams of 15%, 80(.15) = 12.
We are given that .12x + .20y = 12.
We can solve the first equation for x or y. Let's do x.
x = 80 - y
.12(80 - y) + .20y = 12
9.6 - .12y + .20y = 12
.08y = 2.4
y = 30
x = 80 - 30 = 50
