Step-by-step explanation:
3+x-2/x-3<_4
cross multiply
3+x-2<_4(x-3)
3+x-2<_4x-12
1+x<_4x-12
collect like terms
1+12<_4x-x
13<_3x
divide both side by 3
13/3<_×
6.5<_x
The answer is D.
Angle U and S are both 110 degrees.
Adding the three known angles subtract from 360 leaves only 20 degrees for angle T.
We have that
, which means
reduces to
when
, or reduces to
when
.
So we can expand the summation as
Notice that the 10 contributes a total of 30 from the first sum, and -30 from the second sum, so those terms cancel, leaving us with
Soo we just need to make these into fractions
1 x
------------ ---------------
15,000 300,000
all we need to do is figure out what we multiplied by 15,000 to get 300,000 all we have to do is divide 300,000 by 15,000. here is the math:)
300,000/15,000 = 20
so we got 20!!
just multiply that by the 1 in the first fraction to get x in the second fraction:)
your answer: B 20
