Answer:
Step-by-step explanation:
Let the age of a man = x
Age of his brother = y
Three yrs hence, a man will be three time his brother age
This is written as:
x + 3 = 3(y + 3)
x + 3 = 3y + 9 .... Equation 1
The sum of present age is 18
= x + y = 18
x = 18 - y
We substitute 18 - y for x in Equation 1
find their present age
18 - y + 3 = 3y + 9
Collect like terms
21 - 9 = 3y + y
12 = 4y
y = 12/4
y = 3 years
x = 18 - y
x = 18 - 3
x = 15 years
Answer:
A. V(x)= (50-2x) ( 35-2x)x
Step-by-step explanation:
So in comments section, the legnth is 6 feet width is 5 feet height is 3.5 feet and pool is rectangular prism
volume=legnth times width times height
volume=45
legnth=6
width=5
find height
subsitute
45=6 times 5 height
45=30 time height
divide both sides by 30
1.5=height
answe ris pool is 1.5 feet tall
Answer:
The queen palm tree
Step-by-step explanation:
I think you were saying years not inches but pretty much if you divide 85 divided by 5 you get 17 but if you divided 86 divided by 8 you get 12 so 12 is less than 17.
Answer:
Step-by-step explanation:
They are equivalent. Use the distributive property.
3(x+3)
the 3 on the outside of the parenthesis is multiplied by the variable(the letter) and thenthe constant(number) inside the parenthesis.
makes and equivalent equation 3x+9
