2/5a - 3/4b =c solve for a

Answer:

Both the girls have 62 lollipops

Step-by-step explanation:

25+25=50

50+12=62

Answer:

62 lollipops

Step-by-step explanation:

If Angie has 12 more lollipops than Crystal...

25 + 12 = 37 lollipops

Angie has 37 lollipops and Crystal has 25 lollipops. In total, that is...

37 + 25 = 62 lollipops

Answer:

−3/2

Step-by-step explanation:

Hope this helps

:D

Answer:

Step-by-step explanation:

3x = 90 + 46 - 14

3x = 122

x=\(\frac{122}{3}\)≈40,7

Answer: 40.6 repeated

Step-by-step explanation: combine -46 and 14 which is -32. then add 32 to 90. then divide 3 on both sides. 122/3 is 40.6 repeated

Answer:

9/20

Step-by-step explanation:

0.45 = 45/100

45/100=9/20 (divide numerator and denominator by 5)

Answer:

  7 1/2 inches

Step-by-step explanation:

  3 × 2 1/2 = (3×2) +(3×1/2) = 6 + 3/2 = 6 + 1 1/2 = 7 1/2

The stretched clay would be 7 1/2 inches long.

Answer:

Step-by-step explanation:

2.5 x 3

= how long it would be

7.5

The last expression finally simplifies to cot β + tan α using quotient identity in trigonometric identities.

We want to verify the trigonometric  identity;

cos (α - β)/(cos α sin β) = cot β + tan α

Now, according to trigonometric identities in mathematics, we know that;

cos (α - β) = (cos α cos β) + (sin α sin β)

Thus, plugging that back into our left hand side of the main question gives;

[(cos α cos β) + (sin α sin β)]/(cos α sin β)

Rewriting this expression by separating the denominator gives;

[(cos α cos β)/(cos α sin β)] + [(sin α sin β)]/(cos α sin β)

Using quotient identities, this can be simplified to;

cot β + tan α

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Answer:

Second option.

Step-by-step explanation:

In a mathematical sense, all real values of x are possible, as no real values of x will make it undefined.

However, in a reasonable sense, the length and width of a rectangle should be positive, so 0.5x -2 > 0.

Therefore, in a reasonable sense, x > 4.

Answer:

  70 ft

Step-by-step explanation:

You want the actual width of a gym that is represented as 7 inches on a drawing with a scale of 1 in : 10 ft.

Each inch represents 10 feet, so 7 inches will represent ...

  7 × 10 ft = 70 ft

The gym is 70 ft wide.

__

Additional comment

You can also write and solve an equation that shows the measures are proportional:

  actual width / drawing width = (10 ft) / (1 in) = (gym width) / (7 in)

Multiplying both sides of this proportion by 7 in, we have ...

  gym width = (7 in) × (10 ft)/(1 in) = 7 × 10 ft = 70 ft

Answer:

You are right

Step-by-step explanation:

Have a nice day

Answer:

scale factor 2:4

80÷4×2=40

The perimeter of the large rectangle is 40 meters.

An ordered pair of numbers a and b, represented as a / b, is a ratio if b is not equal to 0. A proportion is an equation that sets two ratios at the same value. The numerical relationship between two values demonstrates how frequently one value contains or is contained within another.

The perimeter is defined as the sum of all the sides of the rectangle.

Given that two similar rectangles have a scale factor of 2:4. The perimeter of the large rectangle is 80 meters.

The perimeter of the small rectangle will be calculated as,

S / L = 2 / 4

S = ( L x 2 ) / 4

S = ( 80 x 2 ) / 4

S = 40 meters

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Answer:

Slope of a line passing through (\(x_{1}\),\(y_{1}\)) and (\(x_{2} , y_{2}\)) is given by:

\(\frac{y_{2}-y_{1} }{x_{2}-x_{1}}\)

Now,

Slope of line L, (m) = \(\frac{-3-(-1)}{-2-2}\) = 0.5

Slope of line M, (n) = \(\frac{-1-1}{W-1}\) = \(\frac{-2}{W-1}\)

If the lines L and M are parallel to each other,

m = n

or, 0.5 = \(\frac{-2}{W-1}\)

or, 0.5 (W - 1) = -2

or, W - 1 = -4

or, W = -3

Therefore the required value of W is -3.

The answers to the questions are in the picture

The vertex of the graph is a maximum at (-2, 4)

From the question, we have the following parameters that can be used in our computation:

The graph

The graph is a quadratic function

From the graph, we can see that the graph has a maximum value

This maximum value represents the vertex of the graph

And it is located at (-2, 4)

So, we have

Maximum = (-2, 4)

Hence, the maximum value of the function is (-2, 4)

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The evaluated value of x from the line geometry given is 36.

An angle is the point where two lines meet. From the given diagram, the sum of the angles on the line is 180 degrees.

Take the sum to have

x + 3x + x = 180

Simplify

4x + x = 180

5x = 180

Divide both sides by 5

5x/5 = 180/5

x = 36

Hence the value of x from the diagram is 36

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The obtained answers for the given line segments are as follows:

9. The value of the line segment \(\overline {DE}\) = 43; Where \(\overline { DF}\) = 61 and \(\overline {EF}\)

10. The value of x is 6; Where \(\overline {DE}\) = 4x - 1, \(\overline {EF}\) = 9, and \(\overline { DF}\) = 9x - 22

11. The value of line segment \(\overline {EF}\) = 32; Where  \(\overline { DF}\) = 78, \(\overline {DE}\) = 5x - 9, and \(\overline {EF}\) = 2x + 10

12. The value of line segment \(\overline { DF}\) = 57; Where \(\overline {DE}\)  = 4x + 10 \(\overline {EF}\) = 2x - 1, and \(\overline { DF}\) = 9x - 15.

The calculation for the required values is as follows:

9. Finding \(\overline{DE}\):

It is given that,

\(\overline{DF}\) = 61; \(\overline{EF}\) = 18

From the figure, we can write

\(\overline{DF} = \overline{DE} + \overline{EF}\)

On substituting the given values,

61 = \(\overline{DE}\) + 18

⇒ \(\overline{DE}\) = 61 - 18

∴ \(\overline{DE}\) = 43

10. Finding x:

It is given that,

\(\overline {DE}\) = 4x - 1, \(\overline {EF}\) = 9, and \(\overline { DF}\) = 9x - 22

From the figure we have

\(\overline{DF} = \overline{DE} + \overline{EF}\)

On substituting,

(9x - 22) = (4x - 1) + 9

⇒ 9x - 22 = 4x - 1 + 9

⇒ 9x - 4x = 8 + 22

⇒ 5x = 30

∴ x = 6

11. Finding \(\overline{EF}\):

It is given that,

\(\overline { DF}\) = 78, \(\overline {DE}\) = 5x - 9, and \(\overline {EF}\) = 2x + 10

From the figure we have

\(\overline{DF} = \overline{DE} + \overline{EF}\)

On substituting,

78 = (5x - 9) + (2x + 10)

⇒ 78 = 5x - 9 + 2x + 10

⇒ 7x + 1 = 78

⇒ 7x = 78 - 1

⇒ 7x = 77

∴ x = 11

On substituting x = 11 in \(\overline {EF}\) = 2x + 10; we get

\(\overline {EF}\) = 2(11) + 10

      = 22 + 10

      = 32

Therefore, the value of the line segment \(\overline {EF}\) is 32.

12. Finding \(\overline {DF}\):

It is given that,

\(\overline {DE}\)  = 4x + 10 \(\overline {EF}\) = 2x - 1, and \(\overline { DF}\) = 9x - 15

From the figure we have

\(\overline{DF} = \overline{DE} + \overline{EF}\)

On substituting,

(9x - 15) = (4x + 10) + (2x - 1)

⇒ 9x - 15 = 4x + 10 + 2x - 1

⇒ 9x - 15 = 6x + 9

⇒ 9x - 6x = 9 + 15

⇒ 3x = 24

∴ x = 8

On substituting x = 8 in \(\overline { DF}\) = 9x - 15; we get

\(\overline { DF}\) = 9(8) - 15

      = 72 - 15

      = 57

Therefore, the value of the line segment \(\overline { DF}\) is 57.

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Answer:

It is A

Step-by-step explanation:

I have brainly tutor and had that exact question

we have to add the amount of gallons he used

so he used 11/12 gallons

answer:

(2x + 1)(x +3)

explanation:

Answer: Katye will have $7 left over after buying a book and donating to as many charities as possible.

Step-by-step explanation:

If Katye received $100 in cash and spent $23 on a book, she would have $77 left. If she donates $10 to each charity, she can donate to a maximum of $77/$10 = 7 charities.

So, if she donates $10 to 7 charities, she would have spent a total of $10 x 7 = $70 on donations.

Therefore, Katye will have $77 - $70 = $7 left over after buying a book and donating to as many charities as possible.

Answer: HERES YOUR HURRIED ANSWER!

Let's start by finding the total amount of money that Katye will donate to the local charities.

If she donates $10 to each charity, and she donates to as many charities as possible, then we can use division to find the number of charities:

Number of charities = (total cash - cost of book) ÷ donation amount

Number of charities = (100 - 23) ÷ 10

Number of charities = 7

So Katye can donate to 7 charities

The total amount she will donate is:

Total donation = number of charities × donation amount

Total donation = 7 × 10

Total donation = $70

To find out how much money Katye will have left over, we can subtract the cost of the book and the total donation from the total amount of cash:

Leftover money = total cash - cost of book - total donation

Leftover money = 100 - 23 - 70

Leftover money = $7

Therefore, Katye will have $7 left over after buying the book and donating to as many local charities as possible

Answer:

The probability that demand during lead-time will exceed 20 bails is 0.2033.

Step-by-step explanation:

We are given that it has been previously determined that demand during the lead-time is normally distributed with a mean of 15 bails and a standard deviation of 6 bails.

Let X = demand during the lead-time

So, X ~ Normal(\(\mu=15, \sigma^{2} = 6^{2}\))

The z-score probability distribution for the normal distribution is given by;

                               Z  =  \(\frac{X-\mu}{\sigma}\)  ~ N(0,1)

where, \(\mu=\) population mean demand = 15 bails

           \(\sigma\) = standard deviation = 6 bails

Now, the probability that demand during lead-time will exceed 20 bails is given by = P(X > 20 bails)

       P(X > 20 bails) = P( \(\frac{X-\mu}{\sigma}\) > \(\frac{20-15}{6}\) ) = P(Z > 0.83) = 1 - P(Z \(\leq\) 0.83)

                                                             = 1 - 0.7967 = 0.2033

Answer:

Step-by-step explanation:

First we need to find the 20% discount.

$32.99 x .20 = $6.598

The 20% discount is $6.59

We subtract the discount from the original price:

$32.99 - $6.59 = $26.40 (This is price after the discount.)

Now we need to find the amount of the sales tax on the discounted price.

$26.40 x .08 = $2.11 (This is the sales tax on the discounted price.)

The total price Andre paid is the discounted price plus the sales tax.

$26.40 + $2.11 = $28.51

Total price paid: $28.51

Answer:

A = 2184 cm²

Step-by-step explanation:

the area (A) of the figure is calculated as

A = \(\frac{1}{2}\) h(b₁ + b₂)

where h is the perpendicular height between the bases b₁ and b₂

here h = 42 , b₁ = 52 , b₂ = 52 , then

A = \(\frac{1}{2}\) × 42 × (52 + 52) = 21 × 104 = 2184 cm²

Answer:

A = 2184 cm2

Step-by-step explanation:

Area of a parallelogram:

\(A = b*h\)

\(b=52,h=42\)

\(A=(42)(52)=2184cm^{2}\)

Hope this helps.

Answer:

Tina will be able to sell 24 beignets

Using graphing technology, we have came to know that the range οf the given functiοn is f(x )≤ 7.

The set οf all resulting values οf a functiοn is called the range οf a functiοn.

Fοr example if the functiοn is f(x)= 2x.

Fοr the given set οf values x={ 1,2,3 and sο οn} the range will be {2,4,6 and sο οn}

Given functiοn is f(x)= -|x|+7

The range οf an absοlute function οf the fοrm -c| \(ax+b\)| is f(x) ≤ k

here k=7

sο the range will be f(x) ≤ 7

Hence range οf the given functiοn  will be f(x) ≤ 7.

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Answer: A school reserved a banquet hall for the spring dance. In addition to a $100 deposit, each couple must pay $20. If the total cost of the banquet hall is $1,140, write and solve an equation to find the number of couples attending the spring dance. b. Solve the problem arithmetically. Show the steps you used. c. Compare and contrast the steps you used to solve the problem algebraically and arithmetically.

Step-by-step explanation:

there ya go this was hard

Answer:

Almost equals 28°

Step-by-step explanation:

cos(x)= 12/18

x= cos^-1 (12/18)

So it equals 48.1896°

A. −5x+3y=−5=a vertical plane

B.  x=3=a =a vertical plane

C. y=−9=a=a vertical plane

D. z=−10=b=a horizontal plane

A plane that crosses a vertical line: a perspective plane that is parallel to both the ground plane and the image and passes through the point of sight.

The body is divided into superior and inferior halves by an anatomical plane called the transverse plane, also referred to as the horizontal plane, axial plane, and transaxial plane. Its angle with the coronal and sagittal planes is perpendicular.

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Answer:

17

Step-by-step explanation:

...................

The total area of the three triangles is square units is 36 and the area of the figure is square units is 60.

The triangle can be defined as a three-sided polygon in geometry, and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.

From the figure, the area of triangles can be calculated using the:

Area = (1/2)height×base length

Area of three triangle = 1/2(4×6) + 1/2(6×4) + 1/2(4×6)

Area of three triangle = 1/2(24×3) = 36 square units

Area of the figure = area of three triangle + area of the rectangle

= 36 + 6×4

= 60 square units

Thus, the total area of the three triangles is square units is 36 and the area of the figure is square units is 60.

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Answer:

Step-by-step explanation: