All categories

3 years ago

Grade 7 : Help, anyone? Urgent!!!!!!!!

Mathematics

1 answer:

MariettaO [177]3 years ago

4 0

Materials = $4.25
Labor = $5.35
Sale Price = $16.99

A.) Profit = Sale Price - (Materials + Labor)
Profit = 16.99 - (4.25 + 5.35)
Profit = 16.99 - (9.60)
Profit = $7.39

Profit / Sale Price = % Profit
7.39 / 16.99
or
739 / 1699

B.) % Profit = Profit / Sale Price × 100
  % Profit = 7.39 / 16.99 × 100
  % Profit = 0.43496 × 100
  % Profit = 43.496 %
  % Profit = 43 %

C.) Total Sales = $324.86

Necklaces Sold = Total Sales / Individual Sale Price
Necklaces Sold = 324.86 / 16.99
Necklaces Sold = 19.12

**This question is absolutely ridiculous because either she made money from tips or someone either paid too much or too little**

Total Profit = Necklaces Sold × [Sale Price - (Materials + Labor)]
Total Profit = 19 × [16.99 - (4.25 + 5.35)]
Total Profit = 19 × (7.39)
Total Profit = $140.41

OR

Total Profit = 20 × (7.39)
Total Profit = $147.80

You might be interested in

Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 22 days and

Alika [10]

Answer:

25.5 days

Step-by-step explanation:

Mean number of days (μ) = 22 days

Standard deviation (σ) = 6 days

Z-score for the 72nd percentile (according to tabulated values) = 0.583

The z-score for any number of days, X, is determined by:

$z=\frac{X-\mu}{\sigma}$

The value of X that is greater than 72% of the trial times is:

$0.583=\frac{X-22}{6}\\ X=25.5\ days$

Therefore, 72% of all of these types of trials are completed within 25.5 days.

6 0

3 years ago

The compliment of 25% is 52% true or false

dexar [7]

False,I think because it is true it have to be 50%

3 0

3 years ago

Read 2 more answers

HELPPP I SUCK AT MATH

e-lub [12.9K]

I think the answer is 6

4 0

3 years ago

Lasers can provide highly accurate measurements of small movements. To determine the accuracy of such a laser, it was used to ta

sp2606 [1]

Answer: $p-value \approx 0.01$

Step-by-step explanation:

Hypothesis testing

$\\\left\{\begin{matrix}H_0 : \mu_0 =0\\ H_1: \mu_0 \neq 0\end{matrix}\right.\\$

For this problem, we need to use the t-student distribution to make inference about the data. We calculate the t-statistics as below:

$\bar{X} = 20\:\mu m\\S.E. = 60\:\mu m\\n=82\\t_{stat} = \frac{\bar{X}-\mu_0}{S.E/\sqrt{n}}=\frac{20-0}{60/\sqrt{82}}=3.0185$

Using a t-statistics table, or using the function TDIST in Microsoft Excel with $t_{stat} = 3.0185,\: df (degree\: of\: freedom) = 14 - 1 = 13$ with two-tailed distribution, we obtain $p-value \approx 0.01$ .

4 0

3 years ago

Y+6=-2/5(x+9) how do you graph it in linear function?

mel-nik [20]

<h3><em>Hope I helped you!</em></h3><h3><em>Success!</em></h3>

8 0

3 years ago