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erastovalidia [21]
3 years ago
6

Sales tax in Albany County is 7%, or .07 for each dollar spent. Which expression shows how to calculate the sales tax on a purch

ase of $49.00? A$49.00 × 0.007 B$49.00 × 0.07 C$49.00 × 0.7 D$49.00 × 7
Mathematics
2 answers:
Blizzard [7]3 years ago
8 0

Answer:

B. $49.00 × 0.07.

Step-by-step explanation:

Purchase = $49

Sales tax percentage = 7%

Percentage of sales tax = purchase * sales tax fraction

= $49 * 7/100

= $49 * 0.07.

Anton [14]3 years ago
3 0

Answer:

B

Step-by-step explanation:

To find the sales tax on a purchase of $49, what we simply do is to find 7% of $49. This means that we do the percentage calculation. To do this , we simply place 7 all over 100 and multiply by the purchase amount

This can be written as 7/100 * 49 and this is same as 0.07 * $49

B is the correct answer

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In this diagram, BAC~EDF. If the area of BAC=15 in2, what is the area of EDF? 4, 5.
lesya692 [45]

Answer:

9.6 square inches.

Step-by-step explanation:

We are given that ΔBAC is similar to ΔEDF, and that the area of ΔBAC is 15 inches. And we want to determine the area of ΔDEF.

First, find the scale factor <em>k</em> from ΔBAC to ΔDEF:

\displaystyle 5 k = 4

Solve for the scale factor <em>k: </em>

<em />\displaystyle k = \frac{4}{5}<em />

<em />

Recall that to scale areas, we square the scale factor.

In other words, since the scale factor for sides from ΔBAC to ΔDEF is 4/5, the scale factor for its area will be (4/5)² or 16/25.

Hence, the area of ΔEDF is:

\displaystyle \Delta EDF = \frac{16}{25}\left(15\right) = 9.6\text{ in}^2

In conclusion, the area of ΔEDF is 9.6 square inches.

5 0
3 years ago
Find the area of the kite.<br> 13<br> 12<br> 8<br> 主<br> A=<br> lin²
rewona [7]

Answer:

100㏑²

Step-by-step explanation;

first of all you find the base using the pythagoras theorem

that is, √13² - 12² =√25 = 5

so 5 is the base of the right angle in the big isoceles triangle

so the base of the isoceles triangle is 10 [5 + 5]

so for the first triangle the area is 60㏑²

the second triangle is 40㏑²

therefore 60 + 40 = 100㏑²

8 0
3 years ago
How much longer is dinner than the slide show?
shutvik [7]

Answer:

35

Step-by-step explanation:

7 0
2 years ago
You successfully completed statistics, and the Math Department Chair recruited you to be a tutor. It’s day one on the job, and y
zvonat [6]

Answer:

Step-by-step explanation:

Ok, so we have to help your pupil (lets call her Jane) figure out "why researchers should use a random sample to conduct a survey". So, i will list all of the choices.

  • A random sample is likely to avoid bias
  • In a random sample some members of the population are more likely to be selected than others
  • Random samples provide consistency and systematically favor one choice over every other choice in each survey question
  • Random sampling will provide a more representative sample of population
  • Researchers can use a random sample to draw conclusions about the population

Random sampling is used to get the best average, and not favor any one opinion. For example, if you were trying to figure out the daily spending budget of people, you wouldn't just go to the upper clas part with all the rich people, you would survey from all over the town to get results from all kinds of people. So, the answers are:

  • A random sample is likely to avoid bias (because thats exactly what they do)
  • Random sampling will provide a more representative sample of population (because they are designed to do that)
  • Researchers can use a random sample to draw conclusions about the population (thats why they take the samples)

Hope this helps

4 0
3 years ago
5(x – 4) + 3x – 9x = 6 - (2x + 5) + 8x
AURORKA [14]
This is what i got:
-x-20=6x+1
6 0
3 years ago
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