Answer:
$13.5
Step-by-step explanation:
Given data
We are given that the tax per CD is $1.30
Hence for the 3 CDs the total tax = 3*1.3= $3.9
Also, the cost of the three CDs before tax = 44.4-3.9
=$40.5
Hence the cost of each CD before tax is
=40.5/3
=$13.5
Answer:
the answer is 5
Step-by-step explanation:
5.3x5=26.5
Answer:
y = (7/2)x -20
Step-by-step explanation:
The given line is in slope-intercept form, so you can read its slope from the equation.
y = mx + b . . . . . m is the slope; b is the y-intercept
y = -(2/7)x + 9 . . . . . . has slope -2/7
The perpendicular line will have a slope that is the negative reciprocal of this, so will be ...
m = -1/(-2/7) = 7/2
We can use this and the given point to write the equation in point-slope form.
y = m(x -h) +k . . . . . . line with slope m through point (h, k)
We have m = 7/2, (h, k) = (4, -6) so the equation is ...
y = (7/2)(x -4) -6
y = (7/2)x -20
Answer:
<em>y = 150</em>
Step-by-step explanation:
<u>Proportions</u>
It's given y is directly proportional to the square of x-1. It can be expressed as:
Where k is the constant of proportionality. We know y=24 when x=3. Substituting:
Solving for k:
k = 24/4 = 6
Thus, the equation is:
When x=6:
y = 150
The answer is tens because all the numbers the decimal end with an ‘s’, and all the numbers the decimal end with a ‘ths’.