Answer:
x + 2y = -1
Step-by-step explanation:
First, we'll find the slope.
Slope = (2 - (-3)) / (-5 - 5) = 5 / -10 = -1/2
Since we know the slope and a point that belongs to the line, we can write this in point-slope form which will be:
y - 2 = -1/2(x - (-5)) *I used (-5, 2) but it doesn't matter which point you use
y = -1/2(x + 5) + 2
y = -1/2x - 1/2
Standard form:
1/2x + y = -1/2
x + 2y = -1
Answer:
65
Step-by-step explanation:
let the son's age be x then the man's age is 5x
In 13 years
son's age = x + 13 and man's age = 5x + 13 and he is 3 times as old as son
5x + 13 = 3(x + 13)
5x + 13 = 3x + 39 ( subtract 3x from both sides )
2x + 13 = 39 ( subtract 13 from both sides )
2x = 26 ( divide both sides by 2 )
x = 13 ← son's present age
5x = 5 × 13 = 65 ← man's present age
Answer:
Step-by-step explanation:
6x - 3 - 11
6(4) - 3 - 11
24 - 14
10
Answer:
$43.66 rounded to the nearest 10 =$40
15% of $40 = $6
Step-by-step explanation:
Answer:
The correct response will be "0.01913".
Step-by-step explanation:
According to the question,
p - P(70 years or older)
= 0.18
n = 4
X = no. of individuals who are older than 70 years
Now,
∴ ![P(X=r)=n_C_r \ p^r(1-p)^{n-r}](https://tex.z-dn.net/?f=P%28X%3Dr%29%3Dn_C_r%20%5C%20p%5Er%281-p%29%5E%7Bn-r%7D)
∴ ![P(X=3)=4_C_3(0.18)^3(1-0.18)^{4-3}](https://tex.z-dn.net/?f=P%28X%3D3%29%3D4_C_3%280.18%29%5E3%281-0.18%29%5E%7B4-3%7D)
![=4\times (0.18)^3(0.82)^1](https://tex.z-dn.net/?f=%3D4%5Ctimes%20%280.18%29%5E3%280.82%29%5E1)
![=0.01913](https://tex.z-dn.net/?f=%3D0.01913)