Answer:1. 12:6 equivalant ratio:24:12
Step-by-step explanation:
12:6 means twelve to 6 and to find a equivalant ratio means to find a number that 12 and 6 can equal so it would be 24:12 which i multiplied by 2.
Answer:
5√3 miles per hour
Step-by-step explanation:
Throughout their journey, the component of velocity of rowboat B to the east is the same as that of rowboat A:
(10 mph)(cos(π/3)) = 5 mph
Meanwhile, the component of velocity of rowboat B to the north is ...
(10 mph)(sin(π/3)) = 5√3 mph
Since rowboat A is always traveling in a direction that is at right angles to the direction between the boats, it contributes nothing to their relative speed. Since rowboat B is always directly north of rowboat A, its speed to the north is their relative speed.
The distance between the rowboats is increasing at 5√3 mph ≈ 8.66 mph.
Add the two equations together to get 14x=-14. You can get that x=-1. Plugging that in, you get y=0.
So, x=-1
y=0
To solve this problem, I would set up an equation, letting x represent our unknown value. First, we must convert 12% to its decimal equivalent, by dividing 12/100. We do this because percentages represent parts of a total 100%, so we must take the percentage (part) and divide it by 100 (whole). Since 12/100 = 0.12, we can create our equation:
182 is 12% of a number
*Remember that "is" means equals in math and "of" means multiplication*
182 = 0.12 * x
OR
182 = 0.12x
To solve this equation, we must divide both sides of the equation by 0.12 to get the variable x alone on the right side of the equation.
x = 1516.66666667
Therefore, your answer is option B, 1516.7.
Hope this helps!
Answer:
24.6 years
Step-by-step explanation:
Given
Given
μ=32 years
σ=6.2 years
and
z-score= -1.2
Since we are given the values of mean, standard deviation and z-score of a value, we have to find the value.
We will use the formula of calculating z-score for finding the value.
Let x be the value that we have to find out
z-score= (x-μ)/σ
-1.2=(x-32)/6.2
-1.2*6.2=x-32
-7.44=x-32
x= -7.44+32
x=24.56
Rounding off to the nearest 10th
x=24.6 years
So the age of movie attendant with a z-score of -1.2 is 24.6 years ..