If y varies inversely with x and y =5 when x=20 find x when y = -4
1 answer:
Answer:
x=-25
Step-by-step explanation:
Inverse variation
xy =k
We know x and y
20*5 =k
100 =k
So the formula is
x y = 100
We know y = -4
x (-4) = 100
Divide each side by -4
-4x/-4 = 100/-4
x = -25
You might be interested in
Answer:
$10.17
Step-by-step explanation:
9 x .13 = 1.17
9 + 1.17 = 10.17
Answer:3.25
Step-by-step explanation:
30-17=13 13 divied by 4 = 3.25
Answer:
The answer is 0.79
Step-by-step explanation:
The formula to solve this is divide the length value by 1760
The answer would be -3x^2+3 x + 36
Answer:
W=17
Step-by-step explanation: