Solve by elimination:
S = shirt
T= tie
3s+5t=60
2s+3t=39
=
Shirt = 15
Tie = 3
ANSWER:
STEP-BY-STEP EXPLANATION:
We have the following expression:
In order to operate, we must first break the parentheses and then group similar terms, like this:
STEP 1- since 6 doesn't contain the variable to solve for move it to the right side of the equation by subtracting 6 from both sides
X^2-8X=-6
STEP 2- create a trinomial square on the left side of the equation find the value that is equal to the square of half of b the coefficient of x
(b/2)^2 =(-4)^2
STEP 3- add the term to each side of the equation
x^2-8x+(-4)^2=-6=(-4)
STEP 4- simplify the equation
x^2-8x+16=10
STEP 5- factor the perfect trinomial square into (x-4)^2
(x-4)^2=10
STEP 6-solve the equation for x
x=4= square root of 10
Answer:
D
Step-by-step explanation:
It compares two values.
Hope this helps!
