Assume that x gallon water is added: 35% antifreeze
= 1 / (x + 1) = 0.35
1 = 0.35 x + 0.35
0.65 = 0.35(x)
x = 1.857 gallons
The answer is 1.89 gallons of waters should be added to 1 pure antifreeze to obtain a solution that is 35% antifreeze.
Answer:
Area: 40
Step-by-step explanation:
To find the area of a parallelogram you multiply the base times the height, or the length times the height. This is why you multiply 5x8 to get 40. The substitution could be 5 x 8 = X
X is the area.
Find gradient by changing form of equation: y = 2/3x + 4. Gradient is 2/3.
Find y intercept of other line by substituting the coordinates: -8/3
Use information to write out equation of line: y= 2/3x - 8/3
Convert to standard form: -2x + 3y = 8.
Hope this helps :)
Answer:
C) 3.25
Step-by-step explanation:
Just do 81.25 divided by 25 to get 3.25
If you would like to know how much did the seedling grow during the 2nd year, you can calculate this using the following steps:
during the first year: 2 1/4 feet + 1 1/6 feet = 9/4 + 7/6 = 27/12 + 14/12 = 41/12 = 3 5/12 feet
after two years: 5 feet - 3 5/12 feet = 5 - 41/12 = 60/12 - 41/12 = 19/12 = 1 7/12 feet
The seedling grew 1 7/12 feet during the 2nd year.