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>
Y = 3/4x -4
The slope is 3/4 since it is written in the form y =mx+b where m is the slope
We want a line that is parallel so it will have the same slope
We know the slope of the new line (3/4) and a point (-1,7)
So we can use the point slope form of the equation
y-y1 = m(x-x1)
y-7 = 3/4(x--1)
y-7=3/4(x+1)
(Answer is below)
Let's solve this step-by-step.
1. Prime factorization of 384.
2. Apply the exponent rule. (Formula: 
)
3. Apply the radical rule. (Formula: 
or 
)
3a. Solve 2 to the 6th power.
4. Multiply 2 by 3. (Note: Put the 8 in your final answer)
Your answer is: 
Let me know if you have any questions.
~ Lily, from Brainly.
Answer:
9. 89
Step-by-step explanation:
A squared + B squared = C squared
7 squared + 7 squared = 98 squared
Find the square root of 98 (I recommend using a calculator)
You should get 9.89 as an answer.
Answer:
The discount is $4.50. The sale price is $25.50.
Step-by-step explanation:
Discount: 30(.15)=4.50
Sale Price: 30.00-4.50=25.50
