Answer:
15
Step-by-step explanation:
6.5(2r - s) + 3.7r - 1.25s.....first we distribute the 6.5 thru the parenthesis
13r - 6.5s + 3.7r - 1.25s....now we combine like terms
(13r + 3.7r) = 16.7r
(-6.5s - 1.25s) = -7.75
leaving us with : 16.7r - 7.75s <==
Answer:
24
Step-by-step explanation:
Given two fractions
and 
Factor the denominators of both fractions:

You can see that two digits 2 are the same in both denominators and there are two more factors: 2 in number 8 and 3 in number 12.
Thus, the least common denominator for
and
is

He ran 6 laps per minute. 18/3=6
Answer:
The complex solutions are

Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given equation 7 x² - 7 x +3=0

Given standard equation
a x² +b x +c =0
a = 7 , b= -7 and c=3
<u><em>Step(ii):-</em></u>
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