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2 years ago

A store owner offered a 25% discount off the regular price of a pair of shoes. The amount of the discount is $4.

Mathematics

2 answers:

m_a_m_a [10]2 years ago

3 0

Answer:

Step-by-step explanation:

25% of 16 is 1/4x16=4, which leaves D as as your answer

sineoko [7]2 years ago

3 0

Answer:

Step-by-step explanation:

instead of taking away 4 add it until you have 100%

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Find the area under the curve y = 27/x3 from x = 1 to x = t. Evaluate the area under this curve for t = 10, t = 100, and t = 100

Darina [25.2K]

Answer:

Step-by-step explanation:

given is a function as

$y=\frac{27}{x^3}$

We are to find the area form x=1 to x=t

The curve from x=1 lies in the I quadratnt.

So area above x axis is to be calculated

Area = $\int\limits^t_1 {\frac{27}{x^3} } \, dx \\=\frac{-27}{2x^2} \\= \frac{-27}{2t^2}-\frac{-27}{2}\\=\frac{27}{2}(1-\frac{1}{t^2} )$

a) When t =10,

area = $\frac{27}{2} (1-\frac{1}{10^2} )\\= 13.365$

b) t=100

area = $\frac{27}{2} (1-\frac{1}{100^2} )\\= 13.49865$

c) t=10000

area = $\frac{27}{2} (1-\frac{1}{10000^2} )\\= 13.5$

6 0

2 years ago

Simon bought 3.5 pounds of Beef on sale for $1.25 per pound at HEB. If Simon gave the cashier $10.00, how much change would he r

Lera25 [3.4K]

Answer:

$5.625

Step-by-step explanation:

Cost per pound of beef = $1.25 per pound

Number of pounds purchased = 3.5 pounds

Amount given to cashier = $10.00

Amount of change to receive from cashier =?

Amount issued to cashier - total cost of beef

Total cost of beef = (number of pounds * cost per pound)

Total cost of beef = (3.5 * 1.25) = $4.375

$10 - $4.375 = $5.625

4 0

2 years ago

What is the place value of underlined digit in the number206,909

Mariana [72]

Ones : 9

Tens : 0

Hundreds : 9

Thousands : 6

Ten Thousands : 0

Hundred Thousands : 2

is ur answer

hope this helps

8 0

2 years ago

Read 2 more answers

Preston and Joel are both solving the equation 2x=14. Preston is not sure what to do because he does not know a power of 2 that

Murrr4er [49]

Answer:

yes

Step-by-step explanation:

You can always separate an equation into two parts and see where those graphs intersect.

Joel's method works well.

_____

<em>Additional comments</em>

Preston should know that the invention of logarithms makes it easy to solve equations like this. x = log₂(14) = log(14)/log(2) ≈ 3.8073549.

As for Joel's method, I prefer to subtract the right side to get the equation ...

2^x -14 = 0

Then graphing y = 2^x -14, I look for the x-intercept. Most graphing calculators make it easy to find x- and y-intercepts. Not all make it easy to find points of intersection between different curves.

7 0

2 years ago

Geometry math question please help

denis-greek [22]

In parallelogram the opposite sides are equal. Therefore we have the equation:

$8a-4=6a+10\ \ \ |+4\\\\8a=6a+14\ \ \ |-6a\\\\2a=14\ \ \ |:2\\\\\boxed{a=7}$

In the parallelogram, the sum of measures of the angles at one side is 180°. Therefore we have the equation:

$(18b-11)+(9b+2)=180\\\\(18b+9b)+(-11+2)=180\\\\27b-9=180\ \ \ |+9\\\\27b=189\ \ \ \ |:27\\\\\boxed{b=7}$

Answer:

c = a + b → c = 7 + 7 = 14

A. 14

4 0

2 years ago