Answer:
w = -8
Step-by-step explanation:
Distribute: -6 = 2w + 10
Remove the 10: -6 -10 = 2w +10 -10 ---> -16 = 2w
Isolate the variable: -16/2 = 2w/2
Answer: -8 = w
Answer:
7(m + 2)
Step-by-step explanation:
1) <em>Add the numbers</em>
- 3 + 2m-1 + 5m + 12
- 14 + 2m + 5m
2)<em> Combine like terms</em>
3) <em>Rearrange terms</em>
4) <em>Common factor</em>
<em />
- <em>Factor by grouping</em>
- 3 + 2m - 1+ 5m + 12
- 7m + 14
- <em>Factor by grouping</em>
⇒ 3 + 2m - 1 + 5m + 12
⇒ 7(m + 2)
Solution:
Joaquim Rate per hour = 1/7
Josiah Rate per hour = 1/t
1/7 + 1/x = 1/3
(same denominator & simplification) gives: t = 21/4 = 5.25 .
Josiah needs 5.25 hours to clean alone
(I really don't know why the answer is 5.3 . Can you pls check with the teacher?
Answer:
-1 is the inverse of 16 modulo 17.
Step-by-step explanation:
To find : An inverse of 16 modulo 17 i.e. 
?
Solution :
First we find the GCD of (17,16) using Euclid's algorithm,
Remainder is 1.
Which means, GCD(17,16)=1
Using back substitution we get,
i.e. -1 is the inverse of 16 modulo 17.
On comparing with
The value of x=-1.
