12 x $3 = 36
if K gave the caashier 2, $20 bills.
K will get $4 in change
Write the scenario as an equation:
25 = 2x -4
Add 4 to each side.
29 = 2x
Solve for x
29/2 = x
Simplify
29/2 = $14.50
Stefon was making $14.50 when he first began mowing.
Answer:
The correct option is C....
Step-by-step explanation:
First of all multiply the terms:
(x-6)(x+8)=0
x^2+8x-6x-48=0
Now solve the like terms:
x^2+2x-48=0
Now we will solve this quadratic equation by factoring:
The first terms has coefficient 1. So 1 will be multiplied by the constant term 48.
1*48= 48
Now we have to find out the two values whose product is 48 and whose sum or difference is 2(middle term).
8*6 = 48
8-6 = 2
Now break the middle term:
x^2+8x-6x-48 = 0
Now take the common from the first two and last two terms:
x(x+8)-6(x+8) = 0
(x+8)(x-6)=0
x+8=0 , x-6=0
x= 0-8 , x=0+6
x = -8 , x=6
Thus the solutions we get are: x=6 or x= -8
The correct option is C....
Answer:
When w = 8, w² - 4w - 2 = 30.
Step-by-step explanation:
w² - 4w - 2
Substitute value w = 8.
8² - 4(8) - 2
Square 8.
64 - 4(8) - 2
Multiply -4 and 8.
64 - 32 - 2
Subtract 32 from 64.
32 - 2
Subtract 2 from 32.
30.
