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aivan3 [116]
3 years ago
11

Do you know when to choose an estimate or an exact amount?

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
7 0
Use exact amounts when using a calculator or if you have pencil and paper. Use an estimate when doing it in your head.

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What is the cost of each item? What is the subtotal? What is the tax? What is the total paid? Shoes: $49.99 (normally) they are
prisoha [69]

Answer:

Cost of shoes = $37.4925

Cost of jacket = $92.4533

Tax = $9.81

Total paid = $144.2458

Step-by-step explanation:

Normal price of shoes = $49.99

Discount = 25%

Discounted price:

\$49.99 - \$49.99\times \dfrac{25}{100} = \$37.4925

Normal price of jacket = $137.99

Discount = 33%

Discounted price:

\$137.99 - \$137.99\times \dfrac{33}{100} = \$92.4533

Price of pack of cookies = $4.49

No discount on cookies as per question statement.

Total amount without tax = $37.4925 + $92.4533 + $4.49 = $134.4358

Sales Tax = 7.3% of total amount without tax = 7.3% \times $134.4358 = $9.81

Total paid = $134.4358 + $9.81 = <em>$144.2458</em>

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2 years ago
Write 35% as the sum of two benchmark percents or as a multiple of a percent.
Lemur [1.5K]
Beach Mark is a multiplication to remember
6 0
3 years ago
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Find the LCM<br> of 9 and 27.
Mnenie [13.5K]

Answer:

27

Step-by-step explanation:

The answer is 27, because 9 x 3 = 27 and the smallest number that is the same is 27.

Hope this helps!

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The graph models a rock being thrown. What is the interval of decrease?
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ASAP! Guaranteed Brainliest for first decent answer
Gelneren [198K]

Answer:

First differences means take the ordered pairs in increasing order for their x coordinates (assuming the x's go by ones), then subtract each y (except the last) from the y that comes after it.  Keep doing that and you get the first differences.  (The second differences would be what you get if you then subtract each of the first differences from the one that came after it (TMI probably but ...)

Say the points were (1,3), (2,7), (3,11) and (4,15).  The first differences are

7-3 = 4

11-7 = 4

15 - 11 = 4  all 4.  This would also be the slope.  So that is the relationship - they are the same.

6 0
2 years ago
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