Answer:
The solution of the equation 9x=7(x+2) is:
Option D) 7
Step-by-step explanation:
9x=7(x+2)
Eliminating the parentheses applying distributive property:
9x=7(x)+7(2)
Multiplying:
9x=7x+14
Grouping the x's on the left side of the equation: Subtracting 7x both sides of the equation:
9x-7x=7x+14-7x
Subtracting:
2x=14
Solving for x: Dividing both sides of the equation by 2:
2x/2=14/2
Dividing:
x=7
Solution: x=7 (option D)
Answer: 7 blue triangles: 2 yellow triangles
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
Answer:
Step-by-step explanation:
Start at -8. Make a point there.
Then, go up 5 and to the right 1 and make a dot there.
From that same -8 point go down 5 and to the left 1.
You can do a couple if you like. Lastly, draw a line connecting the dots and there is your graphed line.
You would divide the distance by the amount of time it took for each friend. Whatever answer is lower, they walked faster. Please mark brainliest (: