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Ainat [17]
3 years ago
15

What the method and answer for Q8and9

Mathematics
1 answer:
olga55 [171]3 years ago
7 0
For #8, it's approximately 2.5


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When you buy an item on which sales tax is charged,the total cost is calculated by the formula T=P+s/100p where T is the total c
Gennadij [26K]

Given:

The formula for total cost is

T=p+\dfrac{s}{100}p

where, p is the price of item and s is the sales tax rate (as a percent).

You pay $14.77 for an item priced at $14.

To find:

The the tax rate.

Solution:

You pay $14.77 for an item priced at $14. So,

Total cost (T) = $14.77

Price of item (p) = $14

Putting T=14.77 and p=14 in given formula, we get

14.77=14+\dfrac{s}{100}(14)

14.77-14=\dfrac{s}{100}(14)

0.77=\dfrac{s}{100}(14)

Multiply both sides by 100.

77=14s

Divide both sides by 14.

\dfrac{77}{14}=s

5.5=s

Therefore, the tax rate is 5.5%.

7 0
3 years ago
Which of the following statements is true?. . A.A tangent is never a secant.. B.A secant is always a chord.. C.A chord is always
skelet666 [1.2K]

The <em>correct answer</em> is:

A) A tangent is never a secant.

Explanation:

A tangent is a line that touches a circle in exactly one point. A secant is a line that touches a circle in two different points.

Since a tangent only touches once and a secant touches twice, there is no way a tangent can be a secant.

3 0
3 years ago
If 6 cost $60, how much do 8 cost​
madreJ [45]

Answer:

80

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Someone please help me
lianna [129]

the answer is A

you put 200 in the bank account. then wrote a check (taking out) for 20 and 30. then deposited (put in) 40

8 0
3 years ago
A store owner buys a total of 4,000 items for two different products. For shipping costs, it is $0.10 per item of product A and
baherus [9]
x + y = 4,000
0.1x + 0.04y = 352

Product A represents x and product B represents y. The first equation is the total number of items the store owner buys. The second equation is cost per item for both products. The above system of equations can be used to determine how much product A and product B the store owner bought. 


8 0
2 years ago
Read 2 more answers
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