Answer:
Rational numbers are fractional numbers, whose numerator and denominator are integers and the denominator is ever zero.
Step-by-step explanation:
The sum of rational numbers gives a rational number;
+ = 
, because the evaluation of the denominator always results to a non-zero integer.
The product of x = 
, which multiply both numerator and denominator to give integer numbers.
The sum and product of rational and irrational numbers are always irrational numbers, for instance,
x 7 = 2.3 , which is a number which decimal points that can only be represented by the product irrational number and rational number , where 7 is an irrational number.
+ 7 = 7 , which is a whole number and fractional number combined.
Answer:
The answer is,
Step-by-step explanation:
Firstly, you have to get rid of fraction by multiplying (r-3) to both side and expand out:
t × (r-3) = r/(r-3) × (r-3)
rt - 3t = r
Then you have to move all the "r" variables to one side and other variables to the other side:
rt - r = 3t
You can make "r" as a subject by taking out the common term, you can see that the common term on the left is "r" so you can bring out:
r(t-1) = 3t
r = 3t/(t-1)
Answer:
they need to wash 39 cars
Step-by-step explanation:
600-61=539
539/14=38.5
round to 39
Answer:
.................................
Step-by-step explanation:
(x^2+3)*(x^3-5)
x^2*(x^3-5)+3(x^3-5)
x^2*(x^3)+x^2*(-5)+3(x^3)+3(-5)
x^5-5x^2+3x^3-15
x^5+3x^3-5x^2-15
Answer: x^5+3x^3-5x^2-15
