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Whitepunk [10]
2 years ago
12

Sandals are on sale for 30% off. The original price of one pair of sandals is $15. What is the total cost, in dollars, of two pa

irs of sandals at the sale price and including 7% sales tax?
Mathematics
1 answer:
alexandr402 [8]2 years ago
6 0

Answer:

$4.82

Step-by-step explanation:

30% of 15 = 4.5

7% of 4.5 = 0.315

4.5+0.315 = $4.815 approx $4.82

Please mark me brainliest

You might be interested in
.
Amiraneli [1.4K]

Answer:

0.49 radians or 28.07 degrees

Step-by-step explanation:

Please recall that the definition of the tangent of an angle is "the ratio of the length of the side opposite the angle to the length of the adjacent side, of a right triangle."

Here,    opposite side length           8

tan x = ------------------------------------- = ---------

             length of adjacent side       15

We use the inverse tangent function to determine the angle x from the given information:

arctan 8/15 = x

Using a calculator, we find that x = 0.49 radians.

The measure of this angle, in degrees, is found by multiplying 0.49 radians by the conversion factor

180 degrees

--------------------

  pi radians

which, in this case, works out to 28.07 degrees.

6 0
3 years ago
A rectangular shaped pond is 16 meters long and 14 meters wide. The dimensions of a rectangular shaped lake nearby is 350%
aalyn [17]

Answer: 56 meters long and 49 meters wide

Step-by-step explanation:

Convert 350% to a decimal. 350% is 3.5. Each lenth is 3.5x larger than the original pond.

16*(3.5) =56 meters length

14*(3.5) = 49 meters width

56 meters long and 49 meters wide

4 0
3 years ago
At the mall, 6 shirts cost $57. Each shirt costs the same amount. At this rate, how much would it cost to buy 4 shirts?
Julli [10]

57/6 = $9.50 per shirt


9.50 x 4 = $38


Answer: $38

8 0
1 year ago
Read 2 more answers
A square dance floor has a perimeter of 120 yards. What is the length of a diagonal of the dance floor?
Crazy boy [7]

Answer:

Hey!

Your answer is C.42.4yd

Step-by-step explanation:

There are 2 ways you can work this on out...

1. Using Pythagoras Theorem...

= 30^2 + 30^2 = 1,800 (30^2=900 so you've added 2 of those to make 1,800)

= SQUARE ROOT THE ANSWER OF 1,800

\sqrt{x} 1,800= 42.42640687119285‬

TO GET A MORE PRECISE ANSWER WE ROUND IT UP TO 1 decimal place

= 42.4 yd is the diagonal length of the dance floor!!

HOPE THIS HELPS!!

6 0
3 years ago
You measure 25 turtles' weights, and find they have a mean weight of 31 ounces. Assume the population standard deviation is 12.8
Firlakuza [10]

Answer:

Margin of error = 4.21 ounces  

Step-by-step explanation:

According to the Question,

  • Given That, You measure 25 turtles' weights, and find they have a mean weight of 31 ounces. Assume the population standard deviation is 12.8 ounces

Therefore, Sample mean = 31 ounces  ,  Sample size(n) = 25 , Alpha(α) = 0.10 & Population standard deviation(σ) = 12.8 ounces

  • Thus, Margin of error  = Z_{critical} × σ / √n  (Z_{critical} at α=.010 is 1.645)

Putting The Values, We get

1.645 × (12.8 / √25 ) ⇒ 4.2112 ≈ 4.21

Thus, the maximum margin of error associated with a 90% confidence interval for the true population mean turtle weight is 4.21 ounces

8 0
3 years ago
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