Answer:
Step-by-step explanation:
Let x be the distance driven, d-distance and C our constant.
Our information can be presented as:
#Subtracting equation 2 from 1:
Hence the fixed cost per mile driven,
is $0.20
To find the constant,
we substitute in any of the equations:
Now, substituting our values in the linear equation:
#y=cost of driving, x=distance driven
Hence the linear equation for the cost of driving is y+0.2x+284
To find the perfect square needed, you take the "middle" value and half it, then square it. so in this case, take -6, half it into 3, and square it to get 9. you'll be adding 9 to both sides
He has $2 left because he has $5, which is taken away from $14 leaving him $9 in debt, $8 of his debt is forgotten so he's down to $1 in debt, after he pays off his last dollar, he will have only $2.
PEMDAS
P - Parentheses (or other grouping symbols)
E - Exponents
M - Multiplication
D - Division
A - Addition
S - Subtraction
![8x[(7+4)x^2] - [(11-7)x^4]\\ \\ 8x[(11)x^2] - [(4)x^4] \\ \\ 8x[11x^2] - [4x^4] \\ \\ 88x^3 - 4x^4 \\ \\ -4x^4+88x^3](https://tex.z-dn.net/?f=8x%5B%287%2B4%29x%5E2%5D%20-%20%5B%2811-7%29x%5E4%5D%5C%5C%20%20%5C%5C%208x%5B%2811%29x%5E2%5D%20-%20%5B%284%29x%5E4%5D%20%5C%5C%20%20%5C%5C%208x%5B11x%5E2%5D%20-%20%5B4x%5E4%5D%20%5C%5C%20%20%5C%5C%2088x%5E3%20-%204x%5E4%20%5C%5C%20%20%5C%5C%20-4x%5E4%2B88x%5E3%20)
If you then want to go on to factor it, your answer would be
Answer:
$30
$90
Step-by-step explanation:
Given parameters:
Selling price of belt = $120
Percentage discount = 25%
Unknown:
Discount = ?
Sale price of the dress = ?
Solution:
Discount is a reduction in the price of a commodity.
Discount = percentage discount x selling price of belt
Input the parameters and solve;
I. Discount = 
x 120 = $30
II. Sale price of the dress;
= selling price - discount amount
= $120 - $30
= $90
