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babymother [125]
3 years ago
10

A wholesaler buys a pair of sunglasses for $5.50 each. He then marks up the wholesale cost 80% to create a retail price for his

customers. Customers must then pay an additional 7% tax on the retail price.what is the total cost of a pair of sunglasses including tax round to the neatest penny
Mathematics
1 answer:
lorasvet [3.4K]3 years ago
8 0
.80+5.50=6.30

6.30+.07=6.37

 so 6.37 would be it
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Which of the following is NOT a solution to the system of inequalities?
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Answer:

(+,0)

Step-by-step explanation:

because the graph of the inequality

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2 years ago
I need help with 15 please ASAP!!!!!!
Lady bird [3.3K]

Answer:

x must equal 5 and y must equal 2

therefore,

5a + 2b = 23 and

5a - 2b = 7.

I'm gonna take 5a + 2b = 23 and add 7 to each side:

5a + 2b + 7 = 30

and substitute 5a -2b in for 7 on the left side:

5a + 2b + (5a-2b) = 30

10a = 30

a = 3

Now we know a. Now take

5a -2b = 7

and substitute in 3 for a

5*(3) - 2b = 7

15 -2b = 7

8 = 2b

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a = 3 and b = 4

Step-by-step explanation:

6 0
3 years ago
Gary is looking over his receipts from his trip to Europe. When he was in Germany, he exchanged US dollars for euros at a rate o
fiasKO [112]
The US to euros is 1: 0.7716, 
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-----  /  --------- =   ------- x ----     = ------         
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hope this helps

sorry if it is confusing



7 0
3 years ago
Read 2 more answers
Ava buys a book for 8.58. She pays with a $10 bill. How much charge will she get
navik [9.2K]
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8 0
3 years ago
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Evaluate the expression if m = 3.<br><br> 3m^2<br><br><br> (SHOW YOUR WORK)
iragen [17]

The value of given expression when m = 3 is 27

<h3><u>Solution:</u></h3>

Given expression is 3m^2

We have to evaluate the given expression for m = 3

To find for m is equal to 3, substitute m = 3 in given expression

From given expression,

\rightarrow 3m^2

Plug in m = 3 in above expression

\rightarrow 3(3)^2 ------ eqn 1

We know that,

a^2 can be expanded as,

a^2=a \times a

Applying this in eqn 1, we get

\rightarrow 3(3)^2=3 \times (3 \times 3)

Simplify the above expression

\rightarrow 3(3)^2=3 \times (3 \times 3) = 3 \times 9 = 27

Therefore, for m = 3 we get,

\rightarrow 3(3)^2=27

Thus value of given expression when m = 3 is found

5 0
3 years ago
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