20 subtracted from the product of x and 10

The retail price of the skateboard = [tex] \color{hotpink}\boxed{\bold{\tt\bold{\$110}}}[/tex]

Given :

▪︎Cost price of a skateboard in a sports shop = $80

▪︎Percentage of markup in the price of the skateboard = 37.5%

Which means :

The retail price of the skateboard :

= Intial price of skateboard + 37.5% of it's initial price

[tex] = \tt80 + 37.5\% \: of \: 80[/tex]

[tex] =\tt 80 + \frac{37.5}{100} \times 80[/tex]

[tex] =\tt 80 + \frac{37.5 \times 80}{100} [/tex]

[tex] = \tt80 + \frac{3000}{100} [/tex]

[tex] =\tt 80 + 30[/tex]

[tex]\color{plum} = \tt\bold{\$110}[/tex]

Therefore, the retail price of the skateboard = $110

Answer:

a. [tex]5 + (-3x) = -4[/tex]

b. [tex]5 + (-3x) = 4[/tex]

c. [tex]5 + (-3x) = 14[/tex]

Step-by-step explanation:

Given

[tex]5 + (-3x)[/tex]

Required

Evaluate

(a) x = 3

[tex]5 + (-3x) = 5 + (-3*3)[/tex]

[tex]5 + (-3x) = 5 + (-9)[/tex]

Remove bracket

[tex]5 + (-3x) = 5 -9[/tex]

[tex]5 + (-3x) = -4[/tex]

(b) x = 1/3

[tex]5 + (-3x) = 5 + (-3*1/3)[/tex]

[tex]5 + (-3x) = 5 + (-1)[/tex]

Remove bracket

[tex]5 + (-3x) = 5 -1[/tex]

[tex]5 + (-3x) = 4[/tex]

(c) x = -3

[tex]5 + (-3x) = 5 + (-3*-3)[/tex]

[tex]5 + (-3x) = 5 + (9)[/tex]

[tex]5 + (-3x) = 14[/tex]

Answer:

the answer is that the carbon-14 is approximately 2600 years old

Answer:

The quadratic equations and their solutions are;

9 ± √33 /4 = 2x² - 9x + 6.

4 ± √6 /2 = 2x² - 8x + 5.

9 ± √89 /4 = 2x² - 9x - 1.

4 ± √22 /2 = 2x² - 8x - 3.

Explanation:

Any quadratic equation of the form, ax² + bx + c = 0 can be solved using the formula x = -b ± √b² - 4ac / 2a. Here a, b, and c are the coefficients of the x², x, and the numeric term respectively.

We have to solve all of the five equations to be able to match the equations with their solutions.

2x² - 8x + 5, here a = 2, b = -8, c = 5.                                                  x = -b ± √b² - 4ac / 2a = -(-8) ± √(-8)² - 4(2)(5) / 2(2) = 8 ± √64 - 40/4.     24 can also be written as 4 × 6 and √4 = 2. So                                                                                     x = 8 ± 2√6 / 2×2= 4±√6/2.

2x² - 10x + 3, here a = 2, b = -10, c = 3.                                                   x =-b ± √b² - 4ac / 2a =-(-10) ± √(-10)² - 4(2)(3) / 2(4) = 10 ± √100 + 24/4. 124 can also be written as 4 × 31 and √4 = 2. So                                                                              x = 10 ± 2√31 / 2×2 = 5 ± √31 /2.

2x² - 8x - 3, here a = 2, b = -8, c = -3.                                                    x = -b ± √b² - 4ac / 2a = -(-8) ± √(-8)² - 4(2)(-3) / 2(2) = 8 ± √64 + 24/4.     88 can also be written as 4 × 22 and √4 = 2. So                                                                             x = 8 ± 2√22 / 2×2 = 4± √22/2.

2x² - 9x - 1, here a = 2, b = -9, c = -1.                                                     x = -b ± √b² - 4ac / 2a = -(-9) ± √(-9)² - 4(2)(-1) / 2(2) = 9 ± √81 + 8/4.                                          x = 9 ± √89 / 4.

2x² - 9x + 6, here a = 2, b = -9, c = 6.                                                    x = -b ± √b² - 4ac / 2a = -(-9) ± √(-9)² - 4(2)(6) / 2(2) = 9 ± √81 - 48/4.                                                                             x = 9 ± √33 / 4 .

Step-by-step explanation:

Answer:

1.(2,-1)

2.[tex]y=(x+1)^{2} +2[/tex]

3.[tex]y=(x-3)^{2} +1[/tex]

Step-by-step explanation:

Answer:

[tex]40x^6y^4\sqrt{x}[/tex]

Step-by-step explanation:

Answer:

3.9

Step-by-step explanation:

Answer:

ok

1st one x=245°

2nd one x= 250

Step-by-step explanation:

hope its correct

hope u find it helpful

Answer:

x = 245 and x = 20

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 5 , then

sum = 180° × 3 = 540°

Sum the interior angles and equate to 540

25 + 112 + 100 + 58 + x = 540

295 + x = 540 ( subtract 295 from both sides )

x = 245

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

5x + 2 + 3x + 5 + 8x + 8 + 4x + 15 + 5x + 10 = 540

25x + 40 = 540 ( subtract 40 from both sides )

25x = 500 ( divide both sides by 25 )

x = 20

Answer:

14.1509717

Step-by-step explanation:

c²-b² = a²

19.5²-6² = a²

a²-12²= x² = 200.25

square root 200.25

X = 14.1509717

Answer:

25.6

Step-by-step explanation:

640*4%

Answer:

the commsion is $25.60

Step-by-step explanation:

commission amount = sale price * commission percentage / 100.

Answer:

65 square units

Step-by-step explanation:

The area of a triangle is: height times base divided by two.

So the area of one of the triangles is 10 square units.

multiply this times 4 to get the total area of the triangles

then add the area of the square which is 5 times 5

25 plus 40 = 65 square units

PLZ MARK BRAINLIEST

Step-by-step explanation:

Statements

1.RA equal RB

2.RP equal RP

3.RA is perpendicular to AP, RB is perpendicular to PB

4.right triangle RAP is congruent to Right triangle RBP

5.PA equal PB

Reasons

1.radii of same circle are equal

2.Reflexitive

3.Radius is perpendicular to tangent

4.HL

5 CPCTC

Answer:

RA = RB ----- radii of the same circles are =

RP = RP ----- reflexive

RA ⊥ AP, RB ⊥ PB ----- Radius congruent to tangent

rtΔ RAP ≅ rtΔ RBP ----- HL

PA = PB ----- CPCTE

Answer:

(x, y) = (-6, 2)

Did this a while ago

Answer:

I believe it is D, 5.

Step-by-step explanation:

Answer:

2:12 or 1:6

Step-by-step explanation:

there are 12 students. you and your friend are 2 of the 12. so it would be a 2:12 chance that you or your friend would get picked. unless if you simplify which then it would be a 1:6 chance that either of you would get picked.

Answer:

I think it is A that will take longer but im not 100 percent sure

Step-by-step explanation:

First write an equation:

Location A-   800+100x

Location B-  1200+200x

Then you need to plug numbers in for x

PLZ FOLLOW ME

Answer:

7.79

Step-by-step explanation:

Answer:

John had $7.79 when he got home

Step-by-step explanation:

8.43 + 0.25-0.89

Hope this helps :)

Answer:

y=5x+2

Step-by-step explanation:

Use desmo.com

its really helpful

Answer:

Step-by-step explanation:

area of a circle = πr² = 201.062

r² =   201.062/π

r = √(201.062/π) ≅8 cm

d = 16 cm

Answer:

Radius =8

Diamter = 16

That's the answer

.

.

.

.

.

Answer:

A statistic is a number that represents a property of the sample. For example, if we consider one math class to be a sample of the population of all math classes, then the average number of points earned by students in that one math class at the end of the term is an example of a statistic

Step-by-step explanation:

Answer:

E

Step-by-step explanation:

-4+9=5 and the only one where y is equal to 5 is E

Answer:

60

Step-by-step explanation:

The least multiple of 5 which is divisible by both 3 and 4 is 60

Step-by-step explanation:

The plant Cuscuta derives its nutrition from the host plant by sending its root-like structures into the stem or roots of the host plant to absorb water, mineral salts and food from it. This type of nutrition is known as Parasitic Nutrition.

Answer:

The plant Cuscuta derives its nutrition from the host plant by sending its root-like structures into the stem or roots of the host plant to absorb water, mineral salts and food from it. This type of nutrition is known as Parasitic Nutrition.