$\therefore \: y = \frac{k}{x} \\ (k = constant \: of \: proportionality) \\ \therefore \: xy = k...(1) \\ plug \: y = 194 \: \: and \: \: x = - 13 \: in \: (1) \\ \therefore \: - 13 \times 194= k \\ \therefore \: k = - 2522 \\ substituting \: k = - 2522 \: in \: (1) \\ xy = - 2522...(2) \\ this \: is \: equation \: of \: variation. \\ plug \: x = 50 \: in \: (2) \\ 50 \times y = - 2522 \\ \therefore \:y = \frac{ - 2522}{50} \\ \huge \red{ \boxed{\therefore \:y = - 50.44}}$

8 0

2 years ago

Is y=3x+5<br>-3x-y=9 perpendicular, parallel or neither<br>

12345 [234]

Answer:

neither

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

What is the value of x three times less than the value of 45−10x?

Mekhanik [1.2K]

This is the concept of algebra. The value of x three times less than the value of 45-10x will be as follows;
The value of x three times is:
3x
subtracting 45-10x we get:
3x-(45-10x)
3x+10x-45
13x-45
the answer is:
13x-45

6 0

2 years ago

What’s the answer???

GarryVolchara [31]

Answer:

The answer is A, 14 inches.

6 0

2 years ago