Step-by-step explanation:
you collect like terms from both sides that is, the variables on one side and the constants on the other side
Answer:
5
Step-by-step explanation:
4.5*10^-8/ 9*10^-9
1) Reduce the fraction, express 9 as a product of multiplying 4.5*2
4.5*10^-8/4.5*2*10^-9
2) Then notice the common factor of numerator and denominator( 4.5) , get rid of it in both numerator and dnominator
3) 10^-8/ 2*10^-9= 1/2*(10^-8/10^-9)= 0.5* (10^-8/10^-9)
10^-8/10^-9= 10^(-8-(-9))= 10^1=10.
so 0.5*10=5 (it is the answer written in scientific form)
we know that
Using the original score as the basis
If Misha increased her test score from
% to
%
then
the increase variation is equal to
%-
%=
%
to find the approximate percent increase of Misha's test score we apply a rule of three
if
%--------------> represents
%
%----------------->x

%
therefore
the answer is
the approximate percent increase of Misha's test score is
%