A method you can use to figure this out is to look it up on the Internet and write in your own words. Also, if there is a paper that showed you what the answer was, you can put the definition in your own words. This is 2 significant strategies to success!!
First, we define variables:
x: small hat
y: medium hat
z: large hat
We now write the system of equations:
x + y + z = 47
5.50x + 6y + 7z = 302
-3x + y = 0
We can write the system in matrix form as:
Ax = b
Where,
A = [1 1 1; 5.50 6 7; -3 1 0]
b = [47; 302; 0]
x = [x; y ; z]
Solving the system we have:
x = 6
y = 18
z = 23
Answer:
the coach did purchase 23 large hats
d. 23
The formula for this is: (sale price) / (1 - percentage)
Percentage have to be in decimal form, so divide percentage by 100 to get the decimal form.
220/(1-.20) = $275
The original price was $275.
Answer: $1411.50
Step-by-step explanation:
Since the sale price is $35 each and there are 30 units, the cost will be:
= $35 × 30
= $1050
We then add the sales tax on the product which is 8%. This will be:
= $1050 + (8% × $1050)
= $1050 + (0.08 × $1050)
= $1050 + $84
= $1134
We then add Shipping price which is $15. This will be:
= $1134 + $15
= $1149
We then add the 25% rush charge on the sales price. This will be:
= $1050 × 25%
= $1050 × 0.25
= $262.50
To get total cost, this will be:
= $1149 + $262.50
= $1411.50
