= 12x + 15y because 3 x 4x = 12x and 3 x 5y = 15y
Answer:
yes because 0.5 is 50%
Step-by-step explanation:
Answer:
about 32.71 feet
Step-by-step explanation:
see attached picture
Use the Pythagorean Theorem: .
So your straight line distance is 10.
We can also recognize this as a multiple of the 3-4-5 Pythagorean triple. We have , with x being the desired value. Therefore x=10, like previously.
Answer:
540
Step-by-step explanation:
Amount of antifreeze in the 90% solution + amount of antifreeze in the 20% solution = amount of antifreeze in the 80% solution
0.90 x + 0.20 (90) = 0.80 (x + 90)
0.90 x + 18 = 0.80 x + 72
0.10 x = 54
x = 540
You need 540 gallons of 90% antifreeze solution.
