Heather paid $2,022.30 for a computer. If the price paid includes a 7% sales tax, which if the following equation can be used to
determine the price of the computer after tax?
(Let x represent the cost of the computer and y represent the total cost after tax.)
(Let x represent the cost of the computer and y represent the total cost after tax.)
2 answers:
Answer:
D)
Step-by-step explanation:
The Total cost, price plus taxes, will given by
1) Dividing the tax 7 by 100, and write it in its decimal form:
2) Add the number 1, and make it a constant
This function fits to calculate the total cost after a 7% tax. In this case just plug $2,022.30 for x, then solve for y to have the total cost.
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Answer:
The cost of per kilogram of salami is = $9.1
Step-by-step explanation:
Given:
Hailey paid $13 for kg of sliced salami.
To find cost per kilogram of salami.
Solution:
We will apply unitary method to find per kilogram cost of salami.
If kg of salami costs = $13
Then 1 kg of salami will cost in dollars will be =
In order to divide by mixed numbers, we will convert mixed numbers to fractions.
⇒
⇒
In order to divide by fractions we will take reciprocal of divisor and then multiply.
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⇒
⇒
⇒
Thus, cost of per kilogram of salami is = $9.1