Answer:
The two numbers are:
30 and 18
Step-by-step explanation:
a + b = 48
a - b = 12
From the first eq.
a = 48 - b
Replacing this last value in the second eq.
(48 - b) - b = 12
48 - 2b = 12
48 - 12 = 2b
36 = 2b
36/2 = b
18 = b
from the first eq.
a + 18 = 48
a = 48 - 18
a = 30
Check:
from the second eq.
a - b = 12
30 - 18 = 12
Answer:
6.75
Step-by-step explanation:
12 is the least common denominator (lcd) for the fractions 1/6 and 3/4
Answer:
4
Step-by-step explanation:
9+9+9+9= 36
36/9= 4
4×9= 9+9+9+9