40 times 10, every 10 seconds you go 40 miles...
3x + 9 + 3x =15
6x + 9 = 15
- 9 = -9
6x = 6
/6 /6
X =1
$60 because he already bought the game but for other game $48
Answer:
9) 28
10) 22
Step-by-step explanation:
collinear means on the same line
9 ) AB+BC=AC
16+12=28
10) 13+9=22
Answer:
4th option
Step-by-step explanation:
x² - 2x - 3 = 0 ( add 3 to both sides )
x² - 2x = 3
using the method of completing the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 1)x + 1 = 3 + 1
(x - 1)² = 4