Answer:
(52, 32 )
Step-by-step explanation:
Given the 2 equations
y = x - 20 → (1)
x + y = 84 → (2)
Substitute y = x - 20 into (2)
x + x - 20 = 84, that is
2x - 20 = 84 ( add 20 to both sides )
2x = 104 ( divide both sides by 2 )
x = 52
Substitute x = 52 into (1) for corresponding value of y
y = 52 - 20 = 32
Solution is (52, 32 )
I think what the teacher wants to express is that SI units are much more convenient to use than English units because the prefixes of the metric system will give you an idea on the conversion factor. Unlike English units, like ft to yard, there is no prefix to help you. You have to know the fact that 1 yard is equal to 3 feet.
Step-by-step explanation:
3d=dx3
3x12=36
50-36=14
Answer:
6 days
Step-by-step explanation:
it is taken every 4 hours so 24/4=6 then 36 doses so 36/6= 6
Answer:
We are given an expression and we have to transform it into an expression with exponent.
5th root of x can be written as
The powers outside will be multiplied as:
where the exponent is and it is a rational number by definition of rational numbers
Step-by-step explanation: