Answer:
3 Years
Step-by-step explanation:
Tree A can be represented by the expression (48+17x) 48 inches in 4 feet, and Tree B can be represented by (84+5x) 84 inches in 7 feet.
When you plus in 3 to both equations you will get 99 inches at each tree when they are 3 years old.
Answer:
1
Step-by-step explanation:
Let the number be x
x² + 2x = 3
x² + 2x - 3 = 0
Product = -3
Sum =2
Factors = 3 * (-1)
x² + 3x - x - 3 = 0
x*(x+3) - (x + 3) = 0
(x + 3)(x - 1) = 0
Ignore x + 3 because the number is a positive number
x - 1 = 0
x = 1
The number is 1
Answer: n - 5
Step-by-step explanation:
Let the unknown number be x.
5/11 * x = 55
Since x is being multiplied by 5/11, and you want x alone, you need to multiply both sides of the equation by the reciprocal of 5/11 which 11/5.
11/5 * 5/11 * x = 55/1 * 11/5
x = 605/5
x = 121
Answer: The number is 121.
