i could really use an explanation of this problem please and thank you

Answer:

The original price of the item is $28.

Step-by-step explanation:

So to find the original price, we have to divide the sale price by the result of one minus the discount in percentage form.

So:

First convert 25% to a decimal, 0.25.

OP(original price) = 21 ÷ 1 - 0.25 =

1 - 0.25 = 0.75

21 ÷ 0.75 = 28.

This is a binomial probability experiment. Each trial is independent of one another, ie each roll is independent. The probability of getting an even number is 3/6 = 1/2 = 0.5 and that probability does not change from roll to roll. Furthermore, the value of n is fixed and not infinitely large. Lastly, each trial outcome comes down to two choices: either you get an even number, or you don't. So we've met the requirements of a binomial probability distribution.

The values of n, p and q are:

Answer:

c

Step-by-step explanation:

Answer:

y = -6x - 39

Step-by-step explanation:

A parallel line will have the same slope so m= -6, but it will have different points.

So we have y= -6x + b and the points are (8,9)

Substitute that in

9 = -6*-8 + b

9 = 48 + b

subtract 48 on both sides

9-48 = 48 - 48 + b

-39 = b

so equation is

y = -6x -39

click the red heart button to give thanks :) happy holidays

Answer:

y=-6x+9

0=-6x+9

6x=9

x=9/3

x=3/2

Answer:

y=6x+20

Step-by-step explanation:

m= y2-y1/x2-x1

m= -4-8/-4-(-2)= 12/-2= 6/1

y= mx+b

y= 6x+b

8= 6(-2)+b

8=-12+b

+12  +12

b= 20

Complete question :

A scuba diver is swimming in the ocean 10 feet below sea level. Then, she dives down 12

more feet to get a better look at a coral reef.

What is the scuba diver's final position relative to sea level?

Answer:

- 22 feets

Step-by-step explanation:

Given that:

Starting position of scuba diver = 10 feets below sea level = - 10 feets

Then a further descent of 12 feets in other to get a better look of the coral Reef

Further descent = - 12 feets (below sealevel)

Hence, Final position of the scuba diver will be:

Starting position + depth of further descent

(-10 + - 12) feets

-22 feets

Answer:

Rs. 40

Step-by-step explanation:

Ravi paid the amount of Rs. 40 for the candies for her daughter's birthday.

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.

If the candies weighed 50 grams each, the total weight of the candies is 80 x 50 = 4000 grams.

To convert the weight from grams to kilograms, we divide by 1000. So, the total weight in kilograms is 4000 / 1000 = 4 kilograms.

If the price of candies was Rs. 10 per kilogram, the total cost for 4 kilograms is 4 x 10 = Rs. 40.

Therefore, he paid Rs. 40 for the candies.

Learn more about Addition operations here:

brainly.com/question/25834626

#SPJ2

Answer:

whats the equation??

Step-by-step explanation:

i need to know what the equation looks like to answer

Answer:

4

x value increases  by 2 in the time it takes y value to increase by 8

8/2 = 4

Answer:

they tipped = 15% of 24.68 = 15/100*24.68 = 3.702

Step-by-step explanation:

Answer:

  Tip: $3.70  

  Total: $28.38

Step-by-step explanation:

  bill:    $24.68

  tip:     0.15 * 24.68 = $3.70

  Total:   24.68 + 3.70 = $28.38

Answer:

14.8 cm

Step-by-step explanation:

Volume of the block: 25 × 13 × 10 = 3250

Side length of the cube: [tex]\sqrt[3]{3250}[/tex] ≈ 14.8

Answer:

14.8

Step-by-step explanation:

Volume of box = volume of cube

Answer:

4) (-3 , 2)

Step-by-step explanation:

Answer:

(-3, 2) because if you extend the line to the right more, it'll go directly through that point, but none of the others. also, if you plot the points, you can look at the line to see which point the line would go through

Step-by-step explanation:

Answer:

50 meter ka 10 km

Step-by-step explanation:

50 meter ka 10 km

Answer:

an odd    an even

Step-by-step explanation:

plz mark as brainliest. my first answer

Answer:

A 6.24 I did this just yesterday and I'm sure I got it right

Answer:

D) 13.9 inches

Step-by-step explanation:

use the pythagorean theorem to solve this - a^2 + b^2 = c^2

8.5^2 + 11^2 = c^2

solving gets us a value of 193.25, so next, get the square root of that to the the diagonal length (13.90143...)

Answer:

Please check the explanation below.

Step-by-step explanation:

Some of the properties are defined as:

[tex]a(b+c) = ab+ac[/tex]

For example,

suppose a=3, b=4, c=5

3(4+5) = 3(4) + 3(5)

3(9) = 12+15

27 = 27

if (a=b), then a-c = b-c

For example,

suppose a=2, b=2, c=5

if a = b ⇒ 2 = 2

then a-c = b-c ⇒ 2-5 = 2- 5 ⇒ -3 = -3

if (a=b), then a+c = b+c

For example,

suppose a=2, b=2, c=5

if a = b ⇒ 2 = 2

then a+c = b+c ⇒ 2+3 = 2+3  ⇒ 5 = 5

if (a=b), then a×c = b×c

For example,

suppose a=2, b=2, c=5

if a = b ⇒ 2 = 2

then a×c = b×c ⇒ 2×5 = 2 × 5  ⇒ 10 = 10

if (a=b), then a÷c = b÷c

For example,

suppose a=2, b=2, c=5

if a = b ⇒ 2 = 2

then a÷c = b÷c ⇒ 2÷5 = 2 ÷ 3  ⇒ 2/5 = 2/5

Let us solve the given equation using the above properties.

7n-16=47                     Given

7n-16+16=47+16   1) Addtion property of Equality ∵ if (a=b), then a+c = b+c

7n=63                  2) simplify

n = 9                    3) Division property of Equality ∵ if (a=b), then a÷c = b÷c        

Answer:

0.13 0.13 3.1.3

Step-by-step explanation:

Hope it's answer you plz mark as Brainlist

Answer: 5 inches

Step-by-step explanation:

Length of souvenir = 15 cm

If 1 inch = 3 centimeters

Length of souvenir in inches :

To obtain the length of souvenir in inches :

Divide the number of inches by 3

Length of souvenir / 3

15 / 3 = 5

Hence, the length of souvenir in inches = 5 inches

Answer: 9.4

a² + b² = c²

5² + 8² = c²

25+64=c²

89 = c²

√89 = √c²

9.4 = c

Step-by-step explanation:

Answer: 9.4

a² + b² = c²

5² + 8² = c²

25+64=c²

89 = c²

√89 = √c²

9.4 = c

Answer:

Hi, sry if this doesn't help anymore but these r the answers

mode=2

median=3.5

mean=3.2

range=5

Step-by-step explanation:

Answer:

14 it is not 14

Step-by-step explanation:

Answer:

ITS NOT 14

Step-by-step explanation:

I got it wrong anything besides that

Answer:

-62

Step-by-step explanation:

Answer

46

Step-by-step explanation:

6(32)−8

=(6)(9)−8

=54−8

=46

Answer:

0.84

Step-by-step explanation:

not for sure but i think im right

Answer:

0.84

Step-by-step explanation:

12 x 0.07 is 0.84

Answer:

25:10

Step-by-step explanation:

Answer:

1137

Step-by-step explanation:

5675+453

6128

Now

7265-6128

1137

Answer:

Step-by-step explanation:

As we move from the x-intercept (-2, 0) to the y-intercept (0, 4), x increases by 2 (this is the run) and y by 4 (this is the rise).  Thus, the slope of this line is

m = rise/run = 4/2 = 2.

Given the y-intercept (0, 4) and the slope (2), the slope-intercept form of the equation of this line is y = 2x + 4.

From this we get the point-slope form:

y = 2x + 4 becomes y - 4 = 2(x - 0), or just y - 4 = 2x.

Answer:

How do you calculate a 35% markup?

Simply take the sales price minus the unit cost, and divide that number by the unit cost. Then, multiply by 100 to determine the markup percentage.

Answer:

130 students do not ride the bus to school.

Step-by-step explanation:

520 * .75 = 390

390 students ride the bus to school.

520-390=130

130 students do NOT ride the bus to school.

Hope this helps! :)

A decrease in the ratio 4:5 implies that :

New quantity:Old quantity = 4:5

Let the new quantity be [tex] \bf \: x[/tex]

[tex] \bf∴ x : 40 = 4:5[/tex]

[tex] = > \bf \frac{x}{40} = \frac{4}{5} [/tex]

[tex] \bf = > 40 \times \frac{x}{40} = 40 \times \frac{4}{5} [/tex]

[tex] \bf = > x = 8 \times 4[/tex]

[tex] \bf = > x = 32[/tex]

So, the new quantity is 32

ABM=CDM-DMC=BAM alternate interior angles

AMB=CMD verticle angles

triangle AMB=CMD by ASA

A=c CPTC

ABD=BDC, BAC=ACD, ADB=DBC by CPCTC

AM=CM def of a Parallelogram

2.

△

RPQ is an isosceles triangle. C is the midpoint of line RQ- Given

RPC=QPC- construction

PC=PC reflective property

∠

RPC= QPC- SAS