Becca sells bracelets for $9 each. She has to pay $4.35 for the materials for each bracelet. How much money does she make from each bracelet after she pays herself back for the materials? How much money does becca make from the sale of 15 bracelets?

i am marking brainiest

Answer:

x=4 or x=-10

Step-by-step explanation:

x² + 6x = 40

x² + 6x - 40 = 40 - 40

x² + 6x - 40 = 0

Use quadratic formula:[tex]\frac{b-+\sqrt{b^{2} -4ac} }{2a}[/tex]

a=1 , b=6 , c= -40

[tex]\frac{-(6)-+\sqrt{6^{2} -4.1.(-40)} }{2.1}[/tex]

[tex]\frac{-(6)-+\sqrt{196} }{2.1}[/tex]

x=4 or x=-10

Hope this helps ^-^

Hi there!

[tex]x + 50.75\geq \frac{387}{4} \\\\x\geq \frac{387}{4} -50.75\\subtract \\x\geq \frac{387}{4} - \frac{203}{4} \\solution:\\x\geq 46\\\\\\[/tex]

The answer is: C

Answer:

Yes your answer is c

Step-by-step explanation:

First convert to mixed fraction.

X + 50.75 > 387 / 4

Then subtract 50.75 from both sides

X + 50.75 - 50.75 > 387 / 4 - 50.75

Finally simplify,

X > 46

(I couldn't do the dash under the greater than sign)

Hope this helps have a good day! :).

(Brainliest would be appreciated)

Answer:

the answer is -11

Step-by-step explanation:

yeah the answer is - 11

Answer:

64°

Step-by-step explanation:

Both triangles represent a right angle by the small box in the angle.

Right angles = 90°

Since the triangles are congruent, then they would have the same measurements in their angles an sides. All triangles also have a sum of 180°. So, we can just subtract (26 + 90) from 180 to get the third angle.

180 - (26 + 90)

180 - 116

64

So, the m∠KLM is 64°.

Answer:

21 square cm

Step-by-step explanation:

[tex] b_1 = 9 \:cm, \: b_2 = 5 \:cm, \: h = 3\: cm\\

Area\: of\: trapezium\\

= \frac{1}{2} (b_1 +b_2)\times h\\\\

= \frac{1}{2} (9 +5)\times 3\\\\

= \frac{1}{2} \times 14 \times 3\\\\

= 7 \times 3\\\\

= 21 \: cm^2 [/tex]

Answer:

[tex]B. \sqrt[4]{7} [/tex]

[tex] {7}^{ \frac{1}{4} } = \sqrt[4]{7} [/tex]

Answer:

b

Step-by-step explanation:

teérrt

Answer:

$122.375

Step-by-step explanation:

To find the total amount and tax, we need to multiply the original price by 1.375 in our case to get tax and the original price:

89×1.375=

$122.375

Answer:

Where are the expressions?

Answer:

48+12=60

60÷2=30

your answer is 30+30

Answer:

d = -29

Step-by-step explanation:

-(1/8)d -4 = -(3/8)

Multiply everything by 8 to get rid of the fractions

8*-(1/8)d -4*8 = -(3/8)*8

-d -32 = -3

Add 32 to each side

-d+32 -32 = -3+32

-d = 29

Multiply everything by -1

d = -29

Answer:

Step-by-step explanation:

If you want the slope, then the formula is change y / change x.

-6 - -2 = -4

6 - -6 = 12

-4/12

-1/3

If this wasn't what you were looking for, feel free to report this answer.

I'm always happy to help :)

Answer:

30%

Step-by-step explanation:

140 is 70% of 200 which means that the dresses were on sale by 30%

140/200 =

140 ÷ 200 =  

0.7 =

0.7 × 100/100 =

0.7 × 100% =

(0.7 × 100)% =

70%;

Then subtract from 100% to get 30%

The quantity of paint will be 2 litres for 20 square meters area.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Gia is painting her wall. 1 litre of paint can cover 10 square meters. She has a rectangular wall that measures 4 meters by 5 meters.

The total area of the wall = 4 x 5 = 20 square meters

Paint for 10 square meters area = 1 litre

Paint for 20 square meters area =  1 x 2 = 2 liters

Therefore, the quantity of paint will be 2 litres for 20 square meters area.

To know more about an expression follow

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Answer:

.

Step-by-step explanation:

Answer:

The area of the wall on the blueprint is 0.1764 ft²

Step-by-step explanation:

The scale is the relationship that exists between the magnitudes of a drawing and the actual dimensions.

The scale factor is the ratio of the dimensions in two similar figures. The term "similar figures" refers to figures that have the same shape but different sizes.

 The ratio between areas is equal to the squared scale factor. This is,  the scale factor for areas is the squared scale factor,

To solve scale problems in this case, then the following proportion must be proposed:

[tex]\frac{representation area}{actual area} =scale factor^{2}[/tex]

Being:

Replacing:

[tex]\frac{representation area}{36 ft^{2} } =0.07^{2}[/tex]

Solving:

representation area= 0.07²*36 ft²

representation area=0.1764 ft²

The area of the wall on the blueprint is 0.1764 ft²

Answer:

-$32

Step-by-step explanation:

Given that

Overdraft fee = $30

Preston Balance = $50

Total expenditure = $52

As per the given question the solution of new balance is provided below:-

To reach the new balance of Presont's first we need to find out the overdraft balance which is as follows:-

Overdraft balance = Balance - Total expenditure

= $50 - $52

= -$2

Since there is a balance of $50 but Pretson purchased for $52 value that results -$2 overdraft balance. In order to determine the new balance we simply added the overdraft fee and overdraft balance which is shown in negative sign.

Now according to the question the New balance of Presont's = Overdraft balance - overdraft fee

= -$2 - $30

= -$32

Answer:

Human activities such as driving cars, and working at factories contribute to global warming significantly because burning fossil fuels in cars releases carbon dioxide, which is the largest source of greenhouse gas emissions in the U.S. and as these gases build up, they trap heat in the atmosphere, causing climate change.

Answer:

x = 2

Step-by-step explanation:

-5(x + 2) = -20

-5x - 10 = -20

-5x = -20 + 10

-5x = -10

x = -10/-5

x = 2

Answer:

Step-by-step explanation:

-5(x+2)=-20

-5x -10=-20

-5x=-10

x=2

Answer:3/5, 6/10, 9/15

Answer:

105 squared cm

Step-by-step explanation:

Area of the shape = area of rectangle with dimensions 6 cm by 9 cm + area of trapezoid with bases 6 cm, 11 cm and height 6 cm.

[tex] = 9 \times 6 + \frac{1}{2} (6 + 11) \times 6 \\ \\ = 54 + 17 \times 3 \\ = 54 + 51 \\ = 105 \: {cm}^{2} \\ [/tex]

Answer:

(3,2)

Step-by-step explanation:

Here's your given:

y = 4x - 10

y = 2

Because they both equal y, that means they equal each other:

2 = 4x - 10

Add 10 on both sides:

12 = 4x

Then, divide 4 on both sides:

3 = x

This represents the x coordinate.

Normally you would put this value into one of the equations to figure out y, but they already gave us that in the beginning:

y = 2

This represents the y coordinate.

Put the two values together to get: (3,2)

Answer:

6

Step-by-step explanation:

Answer:

Step-by-step explanation:

The square root of a positive number cannot be negative.   False.  There are two square roots, one positive and one negative.

All positive numbers have two square roots.   True.  See above.

0 18 = 9 because 9(2) = 18.     Unable to answer; "0 81" is invalid.  Note that

√81 = ±9

49 = 7 because 7(7) = 49.  Invalid statement.  49 never equals 7.  Perhaps you meant √49 = ±7

25 = 5 because 52= 25.  Invalid statement.  Perhaps you meant √25 = ±5.

Please, before you do any more square root problems, learn how to type the  " √ " symbol or equivalent, such as "sqrt( "

Answer:

The point N lies inside the circle

Step-by-step explanation:

A circle is centered at the point T(-6,3) and has a radius of r=1.

To determine if the point N(3,-3) is inside or outside the circle, the distance between N and the point T must be lower than 11.

To calculate the distance between points T and N you use:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

where x1 and y1 are the coordinates of T, and x2 and y2 the coordinates of N.

[tex]d=\sqrt{(3-(-6))^2+(-3-3)^2}=\sqrt{9^2+6^2}=10.81[/tex]

d < 11

The distance d is lower than the radius of the circle. Hence, the point N lies inside the circle

Here's a screenshot from Khan academy for your question!

Answer:

$66.70 for 10 sets

Step-by-step explanation:

Multiply the cost of 1 set by the number of sets wanted

$6.67 * 10

66.70 for 10 sets

Answer:

$66.70

Step-by-step explanation:

In order to figure out the cost of 10 sets of napkins, you have to multiply the cost of one set by 10.

Answer:

1.5 is your answer

Step-by-step explanation:

Answer:

5.0625

Step-by-step explanation:

Answer:

yes, it was a biased sample

Step-by-step explanation:

it is because 8th graders are not the only students that attend middle school, middle school is students from 6th to 8th grade, for the sample to not have been biased, all the students should have been polled

Answer:

Step-by-step explanation:

Remember that a rectangle is a quadrilateral which have its opposite sides equal and parallel, and all its internal angles are 90°. So, those are all the characteristics we need to demonstrate.

Additionally, the diagonals of a rectangle bisect each other.

Having said that, the choices A, C and D can help to demontrate that the figure is a rectangle.

You prove that abcd is a rectangle by the options A, Cand D.

We have given that figure ABCD

we have to determine that ABCD is a rectangle.

Remember that a rectangle is a quadrilateral which have its opposite sides equal and parallel, and all its internal angles are 90°.

So, those are all the characteristics we need to demonstrate.

A rectangle is a quadrilateral with four right angles. It can also be defined as an equiangular quadrilateral, since equiangular means that all of its angles are equal or a parallelogram containing a right angle. A rectangle with four sides of equal length is a square.

Additionally, the diagonals of a rectangle bisect each other.

Having said that, choices A, C, and D can help to demonstrate that the figure is a rectangle.

To learn more about the rectangle visit:

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Answer:

[tex]C,Y_{envelope}(x,t), Y_{carrier}(x,t)=2A, \cos ((k_1-k_2)x/2-(\omega_1 -\omega_2)t / 2 ) , \sin ((k_1+k_2)x / 2 - (\omega_1 +\omega_2)t / 2 )[/tex]

Step-by-step explanation:

Given

[tex]Y_1(x,t)=A \sin(K_1x- \omega _1 t)\\\\Y_2(x,t)=A \sin(K_2x- \omega _2 t)[/tex]

using a trigonometrical identity

sin p + sin q = 2 sin ( p+q/2) cos ( p-q/2)

and here the condition is

the choice is in between sinax and cosax

where a > b

so we get using above equation

[tex]C,Y_{envelope}(x,t), Y_{carrier}(x,t)=2A, \cos ((k_1-k_2)x/2-(\omega_1 -\omega_2)t / 2 ) , \sin ((k_1+k_2)x / 2 - (\omega_1 +\omega_2)t / 2 )[/tex]

Let r represent cost of each box.

We have been given that Mia bought 10 boxes of brownies. So cost of 10 boxes would be [tex]10r[/tex].

We have been given that Mia bought 10 boxes of brownies at the store for a total of $64. The tax on the purchase was $5. So the total cost of 10 boxes would be cost of 10 boxes plus tax.

We can represent this information in an equation as:

[tex]10r=64+5[/tex]

We can subtract 64 from both sides as:

[tex]10r-64=64-64+5[/tex]

[tex]10r-64=5[/tex]

Therefore, our required equation is [tex]10r-64=5[/tex] and option 'c' is the correct choice.

Answer:

Mae Ling earns a weekly salary of $335.

She also earns 5.0% commission on sales. If she sold 4200 worth of merchandise, she would get 4200 x 5/100 = 210$

Totally, she earns 335 + 210 = 545$

Hope this helps!

:)

Answer:

$545

Step-by-step explanation:

Commission is basically the percentage of the profit made that the salesperson gets to keep. The weekly salary is a fixed amount, so that won't change.

Here, Mae Ling sells $4200 worth of merch, which is the profit made, so the commission will be 5% of that:

5% * 4200

Remember that % is just "out of 100", so 5% = 5/100:

(5/100) * 4200 = $210

Add this to the salary:

335 + 210 = $545

She would make $545.