Show proportion and how to solve please

Answer:

2/10

Step-by-step explanation:

1 whole is equal to 10/10

5/10+3/10=8/10

10/10-8/10=2/10

hope this helps! :)

Answer:

the full lenght of fabric is 10/10 so if she used 3/10 and 5/10 that's in total 8/10.. she used 2/10 for the third skirt

Answer:$16

Step-by-step explanation: let $x be the amount of money daniel spent.

tracey spent $38 less than 3 times what daniel spent. blah blah blah

Answer:

1. 75

[tex] \frac{75 }{1} \times \ \frac{120}{100} = 15 \times 6 \\ \\ = 90[/tex]

2.

[tex] \frac{20}{1} \times \frac{50}{100 } \\ = 10[/tex]

3.

[tex] \frac{25}{100} \times \frac{90}{1} \\ = 22.5[/tex]

4.

[tex] \frac{20}{1} \times \frac{200}{100} \\ = 40[/tex]

5.

[tex] \frac{35}{1} \times \frac{50}{100} \\ = 17.5[/tex]

6.

[tex] \frac{17}{1} \times \frac{65}{100} \\ = 11.05[/tex]

Hope I'm right

Answer:

the first option

Step-by-step explanation:

when exponents are multiplied together, they add their values together.

example: y^2 x y^3 = y^5

written out: y x y x y x y x y = y^5

Answer:A

Step-by-step explanation:

Answer:

Kim's checking account has $396.76 left.

Step-by-step explanation:

Kim had $472.15 in her checking account. She deposited $188.50 and wrote a check for $263.89. How much is in Kim's checking account now?

Answer:

2

Step-by-step explanation:

2d = 2 × d

-10 = 2 × (-5)

The common factor is 2.

Pls, choose me as brainliest!

Answer:

2

Step-by-step explanation:

2d = 2 × d

-10 = 2 × (-5)

The common factor is 2.

Answer:

  105°

Step-by-step explanation:

The measure of an inscribed angle is half the measure of the arc it subtends. For an arc of 210°, an inscribed angle that subtends it will have a measure of 105°.

We normally think of the sides of an inscribed angle as being a chord. However, that chord can be considered part of a secant. When the two points of intersection with the circle get arbitrarily close together, the chord becomes a point, and the secant becomes a tangent.

That is, the angle made by this geometry is simply a degenerate case of an inscribed angle. The relationship with the arc measure is unchanged.

  m∠1 = 105°

Answer:

24

Step-by-step explanation:

2x - 8 = 40

2x = 40 + 8

2x = 48

2x/2 = 48/2

x = 24

Answer: 22.4 ft

Step-by-step explanation:

Answer:

x = 54

Step-by-step explanation:

Seven minus a number split into 9 equal parts in one

7 - (1/9)x = 1

7 - 1 = (1/9)x

(1/9)x = 6

x = (9)(6)

x = 54

Answer:

1/4 that's left over because if your take away 1/2 out of 2/6 it = to 1/4

Answer:

1/4 is what's left over because if you take away 2/6-1/2 = to 1/4

Step-by-step explanation:

Answer:

299.99801 mph

Step-by-step explanation:

Average speed = Total distance/ Total time
= 2414(km)/5

=482.8 km/h

=299.99801 mph

does anyone know the answer if you do please post it here

Answer:

Step-by-step explanation:

I know gthis but its To calculate the area of a triangle, multiply the base by the height and divide by two. If you know how to calculate the area of a rectangle, you should be able to calculate the area of a triangle with ease because a triangle is half of a rectangle or square. As a result, because it's half of a rectangle, you should apply the identical approach of calculating the area of a rectangle and then dividing it by two. I hope that's clear!

Answer:

B

Step-by-step explanation:

4(x+3) is 4x+12 and -2(-x-5) is 2x+10 so it makes 4x + 12 + 2x + 10

Answer:

  a) 120°

  b) 16√3 ≈ 27.7 cm²

Step-by-step explanation:

Each exterior angle of a regular polygon measures 360° divided by the number of sides. For a hexagon, the exterior angle is 360°/6 = 60°. That means the adjacent interior angle is 180°-60° = 120°.

Angle ABC measures 120°.

__

The area of triangle ABC can be found using the formula ...

  A = 1/2ab·sin(C) . . . . area of triangle with sides a, b, and angle C between them

  A = 1/2(8 cm)(8 cm)sin(120°) = (32 cm²)(√3/2) = 16√3 cm²

The area of the triangle is 16√3 cm² ≈ 27.7 cm².

Answer:

∠ABC = 120°

ΔABC = 16√3 cm²

Step-by-step explanation:

Part (a)

Sum of interior angles of a regular polygon = (n - 2) × 180°
(where n is the number of sides)

⇒ Sum of interior angles of a regular hexagon = (6 - 2) × 180° = 720°

All the interior angles in a regular polygon are equal.

⇒ Interior angle = sum of interior angles ÷ number of sides

⇒ ∠ABC = 720° ÷ 6

⇒ ∠ABC = 120°

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

Part (b)

Use the sine rule for area of a triangle:  

[tex]\dfrac12ab \sin(C)[/tex]

(where a and b are the sides and C is the included angle)

Given:

Substituting values into the formula:

[tex]\implies \dfrac12\cdot 8 \cdot 8 \sin(120)=16\sqrt{3} \ \sf cm^2[/tex]

Solution:

1. Finding the product of the base of the rectangular prism

2. Writing the expression for the volume of the prism

Area of base

Volume:-.

Answer:

y=30

Step-by-step explanation:

Answer:

7x+y=-3

Step-by-step explanation:

y-4=-7(x+1)

y-4=-7x-7

y=-7x-7+4

y=-7x-3

-7x-y=3

7x+y=-3

Answer:

x=2

Step-by-step explanation:

1. Combine like terms

26x-7x = 19x

2. isolate 19

38/19 = 19x/19

x=2

Answer:

D.

[tex]\frac{2d^{2}-2d-38 }{(d+5)(d+3)}[/tex]

Step-by-step explanation:

Remove any grouping symbol such as brackets and parentheses by multiplying factors.

Use the exponent rule to remove grouping if the terms are containing exponents.

Combine the like terms by addition or subtraction.

Combine the constants.

Answer:

y = [tex]\frac{13x}{10-8x}[/tex]

Step-by-step explanation:

15x + 10y = 8xy + 28x ( subtract 15x from both sides )

10y = 8xy + 13x ( subtract 8xy from both sides )

10y - 8xy = 13x ← factor out y from each term on the left side

y(10 - 8x) = 13x ← divide both sides by (10 - 8x)

y = [tex]\frac{13x}{10-8x}[/tex]

Answer:

y = 13x/10-8x

Step-by-step explanation:

15x + 10y = 8xy + 28x

10y = 8xy + 13x

10y - 8xy = 13x

y(10 - 8x) = 13x

y = 13x/10-8x

Answer:

624 cubic inches

Step-by-step explanation:

12 x 8 x 6.5 = 624

Answer:

3.

Step-by-step explanation:

The y axis is vertical, and the origin is (0, 0). Therefore, since 3 is the y, the vertical distance is 3 and the horizontal, if you need it, is 6.

Answer:

12 in.

Step-by-step explanation:

2x + x + 3/2x + 1/2x = 40 in. = 5x

x = 8 in.

3(8)/2 = 12

Answer:

as I = Pr

Step-by-step explanation:

we have to find P so

P=I/r

P = 2.25/3

P = 0.75

Answer:

262.625 square inches

Step-by-step explanation:

10 x 15.5 = 155

10.25 x 10.5 = 107.625

add together = 262.625

The destructive interference formula for diffraction grating problems is [tex]d\ sin(\theta) = (n+\dfrac{1}{2} )\lambda[/tex].

When the maxima of two waves are 180 degrees out of phase, destructive interference occurs: a positive displacement of one wave is cancelled exactly by a negative displacement of the other wave. The resultant wave has zero amplitude.

In a diffraction grating, the formula for brighter patches arising from constructive interference and darker patches arising from destructive interference is:

[tex]d\ sin(\theta) = n\lambda[/tex]

Here, d is the grating spacing, θ is the angle of light, n represents the fringe order, and w denotes the wavelength.

The value of N can only be integers values.

Now, Because destructive interference occurs between the fringes, the destructive interference formula is

[tex]d\ sin(\theta) = (n+\dfrac{1}{2} )\lambda[/tex]

where n is again an integer.

Hence, the destructive interference formula for diffraction grating problems is [tex]d\ sin(\theta) = (n+\dfrac{1}{2} )\lambda[/tex].

Learn more about Destructive Interference:

https://brainly.com/question/16098226