Answer:
a = 3, b = -1, c = 10
Step-by-step explanation:
Let the three numbers be a, b and c.
Equation 1: a + b + c = 12
Equation 2: a + 2b + 3c = 31
Equation 3: 9b + c = 1
Equation 2 - Equation 1:
Equation 4: b + 2c = 19
Equation 3 times by the number 2
Equation 5: 18b + 2c = 2
Equation 5 - Equation 4
17b = -17
b = -1
Substitute into Equation 4:
2c - 1 = 19
2c = 20
c = 10
Substitute into Equation 1:
a + b + c = 12
a - 1 + 10 = 12
a = 3
Apples . . . . . 40 pounds
Oranges . . . . 5 pounds
Ratio of apples to oranges = 40 pounds / 5 pounds = 8 / 1 .
You would want to use the Keep, Change , Flip
method. So you keep the 1/8, change division into multiplication, the flip the 4 into 1/4.
Step-by-step explanation:
(1/8) / 4
(1/8) * (1/4)
answer: 1/32 or 0.03125
Answer:
(13,6)
Step-by-step explanation:
