Answer:
the answer is here
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Step-by-step explanation:
-2x-10=8
-2x=8+10
X= -18/2
hence X= -9
Answer:
35
Step-by-step explanation:
40=1/2(115-x)
80=115-x
-35=-x
x=35
<span>6n – 11 > 31
</span><span>6n > 31 + 11
</span>6n > 42
n > 42/6
n > 7
Answer:

Step-by-step explanation:
Given: 
Factorizing the numerator and the denominator, we have:
18
- 45q + 25 = 18
- 30q - 15q + 25
= (3q - 5)(6q - 5)
and
9
- 25 = (3q - 5)(3q + 5)
So that,
= 
= 
Therefore,
=
Answer:
3.5 X 10^4 < 2.1 x 10^6
Step-by-step explanation:
3.5 X 10^4 < 2.1 x 10^6
The first thing we look at is the exponent
10 ^4 is less than 10^6
10000 < 1000000
If the exponents are the same, then we look at the numbers out front