There is a pair of sneakers that cost $75.00. You have a $10 off coupon for any purchase over $50.00. If you incude sales tax of
1 answer:
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Answer:
Option (b) is correct.
The temperature of the metal after two hours is 28 Celsius
Step-by-step explanation:
Given : A heated piece of metal cools according to the function , where x is measured in hours and then a cooling device id added that aids in cooling according to the function
We have to determine the temperature of the metal after two hours.
Let w(x) denotes the temperature of metal .
Thus, w(x) can be given by function c(x) + h (x) = [c + h](x)
Thus, , where x is measured in hours.
Thus, after two hours that is when x = 2
the temperature of metal is given by w(2)
Solving , we get,
Thus, the temperature of the metal after two hours is 28 Celsius.
Hence, Option (b) is correct.
Question is Incomplete complete question is given below;
The regular price of an item at a store is p dollars. The item is on sale for 20% off the regular price. Some of the expressions shown below represent the sale price, in dollars, of the item.
Which two expressions each represent the sale price of the item?
Answer:
Expression B:
Expression D:
Step-by-step explanation:
Given:
regular price of the item = p dollars
item is on discount of = 20%
We need to find the expression represent the sale price of the item.
Solution:
First we will find the discounted price.
Discounted price is equal to percent discount multiplied by regular price and then divided by 100.
framing in equation form we get;
Discounted price =
Now we can say that;
Sale price is equal to regular price minus discounted price .
framing in equation form we get;
Sale Price =
This is one of expression represent the sale price of the item.
On solving above expression we get;
Sale Price =
Sale Price =
This is Another expression represent the sale price of the item.