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balandron [24]
3 years ago
11

The senior class at Ron’s school collected $4250 from students during picture sales at prom. Some students bought $15 packages a

nd others bought $20 packages. In all, 250 packages were sold. Which system of equations could be used to determine x, the number of $15 packages sold and y, the number of $20 packages sold?

Mathematics
2 answers:
Ronch [10]3 years ago
6 0

Answer:

15X + 20Y = 4250

Step-by-step explanation:

Readme [11.4K]3 years ago
3 0

Answer:

Given the following information, your system of equation is going to be...

x + y = 250

15x + 20y = 4250

Step-by-step explanation:

So, in the problem, we are given important key details that can help us solve it.

  • x = number of $15 packages sold
  • y = number of $20 packages sold
  • The school collected $4250 from sales
  • 250 packages were sold in total

Now that we have this information, we can solve the problem. Since 250 packages were sold in total, then you are going to add x and y. Since the school collected $4250 from the sales, then you are going to be adding 15x and 20y together.

So, to conclude, your answer is going to be the first answer choice.

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inna [77]

\huge{ \mathbf{  \underline{ Answer }\:  \:  ✓ }}

The sand we need to fill the cylinders is equal to the total volume of the six cylindrical posts .

Given terms ( common for each cylinder ) :

  • height (h) = 4 ft
  • radius. (r) = 0.5 ft

\large \boxed{ \mathrm{volume =\pi {r}^{2}  h}}

  • 3.14 \times  \dfrac{1}{2}  \times   \dfrac{1}{2}  \times 4

  • \mathrm{3.14 \: ft {}^{3} }

Since volume of each cylinder is equal, so total volume of six cylindrical post :

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  • { \mathrm{18.84 \: ft {}^{3} }}

_____________________________

\mathrm{ ☠ \: TeeNForeveR \:☠ }

3 0
3 years ago
Read 2 more answers
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Korvikt [17]

Answer:

The confidence interval is  0.2857<  p <  0.4601

Step-by-step explanation:

From the question we are told that

  The sample size is  n  =  118  

   The  number that gave the correct answer is  k =  44

Generally the sample proportion is mathematically represented as

      \^ p = \frac{44}{118}

=>     \^ p =0.3729

Generally given that the confidence level is  95% the level of significance is mathematically represented as

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=>     \alpha = 0.05

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

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Generally the margin of error is mathematically represented as  

     E =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{p(1 - p)}{n} }

=>   E =  1.96 * \sqrt{\frac{0.3729(1 - 0.3729)}{118} }

=>    E = 0.0872

Generally 95% confidence interval is mathematically represented as  

             \r p -E <  p <  \r p +E

=>    0.3729 -0.0872<  p <  0.3729 +0.0872

=>  0.2857<  p <  0.4601

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Makovka662 [10]

Answer:

100 yds^2

Step-by-step explanation:

To find the area of a square, we need to know the length of one side of the square.  Since the perimeter is 4 times the length of one side, or 4s, and since 4s = 40 yds, s must be 10 yds.

Then the area of the square is (10 yds)^2 = 100 yds^2.

8 0
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Anastaziya [24]

Answer:

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Step-by-step explanation:

to find points on the graph, enter in x values and find y.

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steposvetlana [31]

i think the answer is 1/3 from 8x 6 =-46.7 i think

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