Answer:
(2x+3) (2x-3)
Step-by-step explanation:
Both 4 and 9 have square roots and the problem is a difference of two squares. So if factored, one parenthesis will have a - and the other will have a +.
Answer:
it would take 20 miles and cost 10 dollars.
Step-by-step explanation: Like up the equations so that 50x=40x+200. When you solve for x (number of miles) you find that x=20. Use 20 in either equation (0.5x or 0.4x+2) to get 10 (total cost).
Answer: 8 cups each
explanation: 1 quart= 4 cups
8 quarts=32 cups
32 cups/ 4 people= 8 cups each
Does it say anything about slope?
2/3 to 8 is the same ratio if we multiply both sides by 3/2 so:
2/3×3/2=1
8×3/2=12
So 1 to 12