Answer:
22.5
Step-by-step explanation:
SINCE Y VARIES DIRECTLY WITH X, WE USE THE FORMULA
y=kx; k representing the variable change, y= 7.5, x=5
> y=kx
>7.5= k(5) > 7.5= 5k
>k= 7.5/5 (divide to get the k)
k= 1.5
NOW REPLACE THE NEW VALUES OF X AND K AS THE VARIABLE CHANGE, TO FIND THE VALUE OF Y
>y=kx ; k=1.5 and x=15 y=?
>y= (1.5)(15)
>y=22.5
the value of y is 22.5 when x is 15
Answer:
height of the tower = 2358.3 feet
Step-by-step explanation:
To solve this question, we can use the tangent relation of the angle of elevation, where the opposite side of the angle is the height of the tower minus six feet and the adjacent side of the angle is the distance from David to the tower. So, we have that:
tangent(78) = (height - 6)/500
4.7046 = (height - 6) / 500
height - 6 = 2352.3
height = 2358.3 feet
First what you need to do is 4.2 x 0.6 and that will be you answer.
I believe (7.5, 12.5) is the answer. The answer is where both lines intersect unless there is more to the question.
$600 / 100 = $6
$6 x 40 = $240
Answer: $240
Hope it helped :)
