Answer:
x² + 6x - 27 = 0
x² + 9x - 3x - 27 = 0
x ( x + 9 ) - 3 ( x + 9 ) = 0
( x + 9 ) ( x - 3 ) = 0
Thus ,
x = -9 or x = 3
I hope it helps you
#Indian : )
I believe the correct given problem is:
“What is 80% in its simplest form as a fraction?”
Take note that you missed to place the percent sign which
is very important.
Now to solve this, 80% when converted to decimal form is
0.80 which means that you have 80 parts per 100 parts. Therefore the fraction
form of this would be 80 / 100.
fraction = 80 / 100
However this fraction is not yet the answer because we
can still simplify this further. First step in simplifying is to divide both
the numerator and denominator by 10 so that we are left with:
8 / 10
Next step is to divide by 2:
4 / 5
Now we can see that we can no longer divide this (numbers
should be whole number). Therefore the simplest form as a fraction is 4/5
Answer:
4/5
Answer:
x = 3.25
y =4.75
Step-by-step explanation:
In order to Solve the following system of equations below algebraically using substitution method we say that;
let;
8x - 4y = 7
..................... equation 1
x + y = 8.......................... equation 2
from equation2
x + y = 8.......................... equation 2
x = 8 - y.............................. equation 3
substitute for x in equation 1
8x - 4y = 7
..................... equation 1
8(8-y) - 4y = 7
64-8y-4y=7
64-12y=7
collect the like terms
64-7 = 12y
57= 12y
divide both sides by the coefficient of y which is 12
57/12 = 12y/12
4.75 = y
y =4.75
put y = 4.75 in equation 3
x = 8 - y.............................. equation 3
x = 8 -4.75
x = 3.25
to check if your answer is correct, put the value of x and y in either equation 1 or 2
from equation 2
x + y = 8.......................... equation 2
3.25 + 4.75 =8
8=8.................... proved
Answer:
The value of f is 80.6.
Step-by-step explanation:
We are given the equation and asked to solve for f.
If we are given a fraction with a variable in the numerator, we can multiply both sides of the equation by the denominator to isolate it.
For example, if you look at this equation:
We can multiply both sides by 26 to get the a by itself so the equation can be solved.
Therefore, we can apply this same technique to the equation 
Therefore, the value of f is 80.6.
