Answer:
Step-by-step explanation:
Let older brother age be x and the age difference between the brothers be y
Younger brother's current age = x - y
When older brother's age was at x - y, younger brother's age was x - 2y = 2
When young brother's age will be at x, older brother's age will be x + y = 20
Subtracting the first equation from the second: 3y = 18
y = 6
x = 14
So the older brother is 14 and the younger brother is 8.
Sum of three son's ages now = 15 + 11 + 7 = 33
Daddy's age now = 45
Age difference = 12
Each year, daddy's age goes up by 1 while the sum of three son's ages goes up by 3.
Dividing the age difference by the difference in age gain, 12 / (3 -1) = 12 / 2
= 6
So in 6 years when daddy is 51 and the sum of sons at 21, 17 and 13 will be equal.
3/10 N = 2.1
MULTIPLY by 10/3 to each side
10/3 * 3/10 n = 2.1 * 10 /3
n = 2.1 * 10/3
n = 21/3
n =7
Seventeen percent is your answer
Answer:
The third option down: For what values of x will you get an output, y, that is greater than negative 4 times x minus 1?
Step-by-step explanation:
Y is the output, so you can easily cross off the second option and the fourth option.
x is the value you are controlling and can solve for.
'>' is the <em>greater</em><em> </em><em>than</em> symbol, so the output, y, must be greater than negative 4 times x minus 1.
Answer:
The length of the ramp is x = AC = 10.35 feet
Step-by-step explanation:
From the ΔABC
AC = x = length of ramp
BC = 10 feet
°
x = 10.35 feet
Therefore the length of the ramp is x = AC = 10.35 feet