Rita makes and sells necklaces. The materials to make each necklace cost $2.75. Last week she made 8 necklaces and wants to make a total profit of $78. Using the equation 8 (x + 2.75) = 78, Rita determined that she needs to sell each necklace for $7 to make a total profit of $78. Which error did Rita make?

Although she has the correct equation, she needs to sell each necklace for $12.50.
Although she has the correct solution, she should have used the equation 8 (x minus 2.75) = 78.
The equation should be 8 (x minus 2.75) = 78, and she needs to sell each necklace for $12.50.
The equation should be StartFraction 1 over 8 EndFraction (x minus 2.75) = 78, and she needs to sell each necklace for $75.25.

Answer:

<D=<N

Step-by-step explanation:

Corresponding angle, both in third digit, others are in different digits.

PLS GIVE BRAINLIEST

Answer:

Step-by-step explanation:

∠D≅∠N

because if you write them in the same order they will be coresponding parts

The p-value for the test hypothesis is of 0.4681.

We are working with proportions in this problem, hence the z-distribution is used, first we find the test statistic, and then with the test statistic, we find the p-value.

The test statistic is given according to the following rule:

[tex]z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}[/tex]

In which the parameters of the formula are described as follows:

In the context of this problem, the values of these parameters are given by:

[tex]p = 0.6, \overline{p} = 0.595, n = 68[/tex]

Hence the test statistic is given by:

[tex]z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}[/tex]

[tex]z = \frac{0.595 - 0.6}{\sqrt{\frac{0.6(0.4)}{68}}}[/tex]

z = -0.08

Using a z-distribution calculator, with a left-tailed test, as we are testing if the proportion is less than a value, the p-value is of 0.4681.

More can be learned about the z-distribution at https://brainly.com/question/13873630

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The model shows cost is increasing at a rate of $80 dollars/pound.

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

Given:

We given C gives the cost, in dollars, to shred w pounds of confidential documents of a company.

Also, the modeled equation :C’(500)=80

which shows that for 500 pounds of documents, the cost is increasing at a rate of $80 dollars/pound.

Hence, one pound costs $80.

Learn more about Algebra here:

https://brainly.com/question/24875240

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Answer:

Step-by-step explanation:

C:27

Plzz give me brainliest

1/3

HOPE IT HELPS :)))

Answer:

the answer is either y or z but i really think its y

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Answer:

cinnamon toast crunch

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[tex] \frac{3}{4} \div \frac{4}{3} = \frac{3}{4} \times \frac{3}{4} = ({ \frac{3}{4} })^{2} = \frac{9}{16} \\ [/tex]

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Answer:

(a) y = ¼ sin(x² + C)

(b) y = ¼ sin(x²)

Step-by-step explanation:

(a) dy/dx = ½ x √(1 − 16y²)

dy / √(1 − 16y²) = ½ x dx

4 dy / √(1 − 16y²) = 2x dx

sin⁻¹(4y) = x² + C

4y = sin(x² + C)

y = ¼ sin(x² + C)

(b) When x=0, y=0.

0 = ¼ sin(C)

C = 0

y = ¼ sin(x²)

im thinking of getting a new pair of nike shoes and a nike sweatshirt (i didnt really ask for much lol)

Answer:

1/8

Step-by-step explanation:

Answer:

I don't think I understand but I will do my best. to get $0 profit you could give the tickets out for free

Step-by-step explanation:

also CREATI stop deleting my answers please!

Answer:

Step-by-step explanation:

8hours=60×8= 480 minute

96minutes=0.3 ounces

480minutes =x ounces (use crisscross)

96x =144minutes

X= 144/96=1.5 ounces

Total change in the amount of water is

80,000-1.5=79998.5 ounces

Answer:

It is b

Step-by-step explanation:

Answer:

The inverse reciprocal.

The slope of a perpendicular line is always the inverse reciprocal.

Answer:

Step-by-step explanation:

Slope-Intercept Form: y = mx + b

m - slope

b - y-intercept

The slope m of a perpendicular line is always the inverse reciprocal.

Therefore, our mperpendicular  is 3.

Answer:

261.7

Step-by-step explanation:

Answer:

12 times. one min is 60 seconds. Jill went around 10 times. Jack 12 times. However Jack still passed Jill during his 12 revolutions. Her number is insignificant after you know who made more revolutions per min

Answer: tha answer is d

Step-by-step explanation:

Answer:

It cost 50 cents and if you need to know it uses 500 watts.

Answer:

4

Step-by-step explanation:

4.4*0.99=4.356

4.356*6.3=27.4428

so the decimal places here would be 4

Answer:

so if theirs 3 groups of 1/2 then that means it's 1 1/2

you just 1/2 x 3 = 1 1/2

Step-by-step explanation:

Answer:

[tex]\frac{x^{3}\sqrt[3]{x} }{4}[/tex]

Step-by-step explanation:

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What this is saying is it is taking the cubed root (which is like a square root, except it is using a 3 instead of 2) of x to the power of 10 divided by 64.

The equation is also saying:

[tex]\frac{\sqrt[3]{x^{10} }}{\sqrt[3]{64} }[/tex]

We can simplify the bottom half of the fraction to be 4. The cube root of something is essentially saying its the number times itself 3 times (in this case, divided by that original number). The number to get to 64 was 4 and it was done like this: 4 times 4 times 4 (which equals 64).

As for the top equation, it will simplify down to [tex]x^{3} \sqrt[3]{x}[/tex].

Since [tex]x^{10}[/tex] can be broken up to be x and [tex]x^{9}[/tex], we cube root the [tex]x^{9}[/tex] to become [tex]x^{3}[/tex], while the x remains the same.

We come to result of [tex]\frac{x^{3}\sqrt[3]{x} }{4}[/tex], which is the answer.

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#teamtrees #WAP (Water And Plant)

Answer:

hold on

Step-by-step explanation:

Answer:

should be -1 and 1

Step-by-step explanation:

Answer:

Step-by-step explanation:

-1 ,1

Answer:

y = 2x - 26

Step-by-step explanation:

y = [tex]-\frac{1}{2}[/tex] x - 9 ⇒ slope m = [tex]-\frac{1}{2}[/tex] ⇒ slope of ⊥ line m = 2

(13, 0)

y - 0 = 2(x - 13)

y = 2x - 26