Answer:
33.3%
Step-by-step explanation:
the increase in price was $22. Find the ratio
$22
-------
$66
which comes out to 0.33333, or 33.3%.
The percent change in the price of the item is 33.3%.
y = x + 2
Step-by-step explanation:
General formula for any straight line:
y = mx + c
Where
m = gradient
c = constant
m = y2 - y1/x2 - x1
m = (4 - ( -2))/(2 - ( -4))
m = 6/6
m = 1
y = (1)x + c
y = x + c
Substitute any coordinate from the line of the equation.
4 = 2 + c
c = 2
substitute m and c into general formula
y = mx + c
y = x + 2
Amu of unknown element = 40 - (20% * 40)
= 40 - 8
= 38 amu
therefore, the approximate weight of the unknown element is 38 amu.
hope this helps.
Answer:
The coefficient of x is 6
Step-by-step explanation:
The two expressions are
(x)=-5x+1f(x)=−5x+1
and .
f(x)=6f(x)=6.
The sum of the two expressions is
f(x)=-5x+1f(x)=−5x+1(f(x)=6f(x)=6.)
When we group like terms the expression will be,
f(x)=-5x+1f(x)=−5x+1(f(x)=6f(x)=6.)=f(x)=-5x+1f(x)=−5x+1(f(x)=6f(x)=6.)
When we simplify the expression will now be
f−5x+1(f(x)=6.)
The coefficient of x is the constant behind x in the expression.
The coefficient of x is 3 therefore the answer is 3 .
Step-by-step explanation:
