Answer:
15 days
Step-by-step explanation:
Let x be the number of days needed for B to complete the job. Then x-5 is the number of days needed for A to complete the job.
In 1 day,
- A completes
of all work; - B completes
of all work.
Hence, in 1 day both A and B complete 
of all work. A and B working together can do a work in 6 days. Then
Solve this equation:
If 
then 
that is impossible. So, B needs 15 days to complete the work alone.
I hope this helps you
-(4.2+1/2) ÷ (-)(2.3+2/3)
-9/2 ÷ - 8/3
9/2× 3/8
27/24
1 3/24
Answer:
12y+4x
Step-by-step explanation:
Multiply 4*3y and 4*x
Distributive property
Answer:
5
Step-by-step explanation:
45 divided by 9 is 5
Answer:
(m+2) (4n+3)
Step-by-step explanation:
4mn+3m+8n+6
4mn +8n +3m +6
Factor a 4n from the first term and a 3 from the second
4n (m+2) +3(m+2)
Factor out an (m+2)
(m+2) (4n+3)
