so it went down from 25 to 18, so 25 - 18 = 7.
if we take 25 to be the 100%, what is 7 off of it in percentage?
Answer:
Step-by-step explanation:
Required
Simplify
Solving (1):
Factorize the numerator and the denominator
Factor out x+2 at the numerator
Express x^2 - 9 as difference of two squares
Expand the denominator
Factorize
Cancel out same factors
Hence:
Solving (2):
Expand the numerator and factorize the denominator
Factorize the numerator
Factor out x - 2
Cancel out x - 2
Hence:
Solving (3):
Express x^2 - 9 as difference of two squares
Factorize all:
Cancel out x + 3 and 3 + x
Express as
Hence:
Solving (4):
Expand x^2 - 6x + 9 and factorize 5x - 15
Factorize
Cancel out x - 3
Change / to *
Express as
Hence:
Solving (5):
Factorize the numerator and expand the denominator
Factor out x - 1 at the numerator and factorize the denominator
Express x^2 - 1 as difference of two squares and factor out x - 1 at the denominator
Hence:
Solving (6):
Factorize:
Divide by 3x
Hence:
Solving (7):
Change / to *
Expand
Factorize
Cancel out x - 2 and x - 1
Cancel out x
Hence:
-q-7q=8
First you need to know that there is an invisible 1 in front of -q. Change it to -q if you need to. You get:
-1q-7q=8
add like terms: -1-7 gives you -8.
-8q=8. Divide by -8 on both sides to find q.
-8/8=-1
8/8=1
Therefore, q=1.
100%
2.50 is 50% of 5.00, therefore 5.00 is 100% of 2.50
Step-by-step explanation:
- put your finger on zero and move it to -1 then go up to positive 1 and put ur dot there.
- put ur finger on 0 again then go to -1 but now u move down to -2 and put ur dot there.
- now put ur finger on the zero and go to the opposite side to positive 2 then go down to -2 and put ur dot there. Hope that helps :)