Answer:
k = 2
x = 2y
Step-by-step explanation:
If variables x and y vary directly, this is expressed as;
x ∝ y
x = ky
k is the proportionality constant
Let's assume the value of x and y since we are not given;
x = 20
y = 10
Substitute
20 = k(10)
10k = 20
k = 20/10
k = 2
Hence the constant of proportionality is 2
Substitute i=k = 2 into the equation x = ky
x = 2y
Hence an equation that relates x and y is x = 2y
<em>Note that the values here are assumed value, you can use the same method for any values of x and y</em>
Answer:
a =17.08
b = 16.97
Step-by-step explanation:
What are the values of a and b?
Using pythagoras therem';
Hyp^2 = opp^2 + adj^2
Get the value of b;
18^2 = b^2 + 6^2
324 = b^2 + 36
b^2 = 324 - 36
b^2 = 288
b = √288
b = 16.97
Get the value of a;
b^2 + 2^2 = a^2
288 + 4 = a^2
292 = a^2
a^2 = 292
a = √292
a= 17.09
Answer:
The first on is B. and the Second is A
Step-by-step explanation:
The first one gave you how much they make in a month and the hours they work in that month so division is the logical thing.
There are 12 months in a year and they give you the monthly income so that times 12 = your yearly income!
Hope that helps :)
I think for a)3p b)5s c)-5t
Answer:
70 Degrees
Step-by-step explanation:
Total angle of a quadrilateral is 360 degrees. 90+130+70=290
360-290=70 Degrees
