Answer:
4 weeks and 2 days
Step-by-step explanation:
There are 7 days in one week.
To convert 30 days into weeks and days, divide 30 by 7.
The biggest number you can divide it by is 4 [without going over 30]
7 x 4 = 28.
30 - 28 = 2.
So 30 days = 4 weeks and 2 days.
I hope this helps! :)
Answer:
B) 2 hours
Step-by-step explanation:
If machine A complete a job in 3 1/2 hours or 7/2 of an hour
means that in one hour finished 1÷ 7/2 or 2/7
If machine B complete a job in 4 2/3 hours or 14/3 of an hour
means that in one hour finished 1÷ 14/3 or 3/14 of an hour
Then the two machines working together in one hour will make
2/7 + 3/14 = (4 + 3)/ 14
or 7/14 = 1/2
half of the job. Therefore these two machines working together will take two hours
Answer:
True
Step-by-step explanation:
When multiplying two positives together the product is also positive
1/4 of 1360....." of " means multiply
1/4 * 1360 = 1360/4 = 340
Answer: ((x^2 + 3)^9)/9 +c
Step-by-step explanation:
Let, x² + 3 = u
⇒2x dx = du
Now, substituting, we get,
∫u^8 du
= (u^(8+1))/(8+1)
= (u^9)/9
= ((x^2 + 3)^9)/9 +c