Because y varies inversely as x, therefore
![y= \frac{k}{x}](https://tex.z-dn.net/?f=y%3D%20%5Cfrac%7Bk%7D%7Bx%7D%20)
where k = constant.
When x = 6, y = 2.5. Ther efore
![\frac{k}{6} = 2.5](https://tex.z-dn.net/?f=%20%5Cfrac%7Bk%7D%7B6%7D%20%3D%202.5)
Cross multiply.
k = 6 x 2.5 = 15
The equation is
![y = \frac{15}{x}](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B15%7D%7Bx%7D%20)
When x = 4, obtain
![y = \frac{15}{4}= 3.75](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B15%7D%7B4%7D%3D%203.75)
Answer: a. 3.75
Answer:
15 units.
Step-by-step explanation:
The hypotenuse of the smaller triangle = sqrt (3^2 + 4^2)
= sqrt 25 = 5.
As the scale factor is 1:3 the hypotenuse of the larger triangle = 5 * 3
= 15.
Answer:
87 3/4
Step-by-step explanation: