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Liula [17]
2 years ago
7

You have a coupon for 30% off your total order.

Mathematics
1 answer:
Ostrovityanka [42]2 years ago
6 0

Answer:

you pay $69.74

Step-by-step explanation:

total cost without coupon: 15+65+14 = 94

apply the 30% discount ⇒ 94 × .30 = 28.20

subtract the savings ⇒ 94.00 - 28.20

total, after coupon, before tax ⇒ 65.80

apply 6% tax to 65.80  ⇒  65.8 × .06  ⇒ 3.94

add tax to cost after coupon ⇒  65.80 + 3.94

you pay $69.74

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12a. Shan has 32 books, including 12 books by his favorite author. Express as a decimal the number of books by his favorite auth
LenaWriter [7]

12a. First expressing as a fraction, Shan has 12/32 books from his favorite author, so:

12/32=3/8=0.375 books from his favorite author

12b. Because the decimal 0.375 isn't a periodical decimal, so it would be a terminating decimal.

5 0
1 year ago
What is the range shown in the scatter plot
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You have to line them up for example 1 is in a straight line and so is 3 and 5 you can choose between 3 and five but what about the middle 4.
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2 years ago
The temperature rose from -7°F to 21°F. By how much did the temperature increase?
horrorfan [7]

Answer: 28

Step-by-step explanation: you have to add 21 + 7 because your counting up from -7 to 21

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3 years ago
Factor tree for 30 and 54
elena-14-01-66 [18.8K]

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30|2

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5 0
3 years ago
Read 2 more answers
Find the perimeter of a square with side a. Are the perimeter of the square and the length of its side directly proportional qua
inna [77]

The perimeter of a square with side a = 7.2 cm is 28.8 cm. Yes there exists a direct proportional relationship between Side length and Perimeter of square

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

Given that side of square "a" = 7.2 cm

We have to find the perimeter of square

<em><u>The perimeter of square is given as:</u></em>

Perimeter of square = 4a

Where "a" represents the length of side of square

Substituting the given value a = 7.2 cm in above formula, we get perimeter of square

Perimeter of square = 4(7.2) = 28.8 cm

<em><u>Are the perimeter of the square and the length of its side directly proportional quantities?</u></em>

\begin{array}{l}{\text { perimeter of square }=4 a=4 \times \text { length of side }} \\\\ {\frac{\text { perimeter of square }}{\text { length of side }}=4}\end{array}

The Perimeter is equal to a constant times the Side length, or the Perimeter divided by the Side length is equal to four. So this is definitely a proportional relationship between Side length and Perimeter.

Two values are said to be in direct proportion when an increase in one results in an increase in the other.

So when length of sides increases, perimeter also increases

Hence perimeter and length of side of square are directly propotional quantities

4 0
3 years ago
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