20-30 = 10
10 divide 20 = 0.5
P = 0.5X
P = 0.5(10)
P = 50
value of P is 0.5
If quantity t varies inversely with a quantity r ,
Then mathematically t α 1/r,
Introducing a constant, t = k/r .
When t = 6 then r = 5,
therefore, 6 = k/5
k = 6×5
k = 30 (Constant of variation)
Which means the equation connecting t and r will be t = 30/r
To find the value of t when r = 15, we use the equation of this variation
such that, t = 30/15
t = 2
Answer:
y = (1/4)x
Step-by-step explanation:
"Direct variation" here signifies y = kx, where k is the constant of proportionality.
Then y = kx. Here we are to find k using the info that x = 12 and y = 3:
3 = k(12), or
k = 3/12, or k = 1/4
Then y = (1/4)x
If solving by elimination do this:
1.Add both rows together
-5x =45
2. Solve for x
x=-9
3. Substitute x into either equation (I will use y=7x+67)
y=7(-9)+67
y=4
4. Get variables
x=-9, y=4
Answer:
1.5
Step-by-step explanation:
The person who deleted my answer needs to read next time.....
But yeah I should have just put this, to begin with.
Anyways...... It's the basically the Pythagorean-theorem but easier because if you look you know the full side of 1 line and they are perfectly parallel therefore you do 4.1-2.6 to get the answer
PLZ GIVE BRAINLIEST
