Answer:
14a + 8b
Step-by-step explanation:
First, you need to combine like terms.
4a + 10a = 14a
12b + (-4b) = 8b
14a + 8b
Answer:
4
Step-by-step explanation:
divide 9 by 3 the answer is 3 then divide 12 by 3 then the answer is 4
Answer:
2
Step-by-step explanation:
Answer:
a) 8 and two thirds
b) 4 and 11/24
c) 8 and 1/12
d)8 and 7/24
Step-by-step explanation:
Answer:
Mariana takes the two pills together after 18 hours.
Step-by-step explanation:
Mariana must take two pills; one every 6 hours and another every 9 hours.
She take two pills together. Let she takes the two pills together after t hours at the time when she take initially.
To find the time to take the two pills together, take the least common multiple of 6 and 9.
6 = 2 x 3
9 = 3 x 3
So, the least common multiple is 2 x 3 x 3 = 18
So, she takes the two pills together after 18 hours.
