Answer:
<u>2 years old</u>
Step-by-step explanation:
Let Ellie's age ⇒⇒⇒ x
And Genya's age ⇒⇒⇒ y
∵ The sum of Ellie's age and Genya's age is 60
∴ x + y = 60 ⇒ (1)
∵ In six years, Genya will be eight times as old as Ellie
∴ (y + 6) = 8 (x+6)
∴ y + 6 = 8x + 48 subtract 6 from both sides
∴ y = 8x + 42 ⇒ (2)
By substituting from 2 at 1 with the value of y
∴ x + (8x + 42) = 60
∴ 9x = 60 - 42 = 18
∴ x = 18/9 = 2
∴ y = 60 - x = 58
So, Ellie's age now = 2 years old
And Genya's age = 58 years old
Answer:
second option is the answer of your question
Answer:
36
Step-by-step explanation:
You take 1/2 the linear term's coefficient and square it.
The linear term is the term that contains just an x and a number -- in this case 12x
Take 1/2 12 = 6
and square it
6^2 = 36
So when you've done that you should get
x^2 + 12x + 36 = 11 + 36
x^2 + 12x + 36 = 47
Answer:
21.3°
Step-by-step explanation:
tan Ф = 700/1800
tan Ф = 0.39
Ф = tan-1 0.39
Ф = 21.31°
Answer:
The center circle of this question is (2,3)
