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OLEGan [10]
3 years ago
5

Can I get help with this?

Mathematics
1 answer:
Masteriza [31]3 years ago
6 0

Answer:

AC = 120

Step-by-step explanation:

<D = 360 - 95 - 145

D =120

Central Angle = Intercepted Arc

AC = <D = 120

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9 burgers and 1 doughnut cost $31.30. 3 doughnuts and 6 burgers cost $26.70. Find the cost of 2 burgers.​
kirill [66]

Step-by-step explanation:

Let assume that

Cost of 1 burger = $ x

Cost of 1 doughnuts = $ y

According to statement, 9 burgers and 1 doughnut cost $ 31.30

\begin{gathered}\sf \: 9x + y = 31.3 \\ \\ \end{gathered}

\begin{gathered}\sf\implies \sf \: y = 31.3 - 9x - - - (1) \\ \\ \end{gathered}

According to statement again, 3 doughnuts and 6 burgers cost $ 26.70

\begin{gathered}\sf \: 6x + 3y = 26.7 \\ \\ \end{gathered}

\begin{gathered}\sf \: 3(2x + y) = 26.7 \\ \\ \end{gathered}

\begin{gathered}\sf \: 2x + y = 8.9 \\ \\ \end{gathered}

On substituting the value of y from equation (1), we get

\begin{gathered}\sf \: 2x + 31.3 - 9x = 8.9 \\ \\ \end{gathered}

\begin{gathered}\sf \: 31.3 - 7x = 8.9 \\ \\ \end{gathered}

\begin{gathered}\sf \: - 7x = 8.9 - 31.3 \\ \\ \end{gathered}

\begin{gathered}\sf \: - 7x = - 22.4 \\ \\ \end{gathered}

\begin{gathered}\bf\implies \: x = 3.2 \\ \\ \end{gathered}

So,

Cost of 2 burgers = 3.2 × 2 = <u>$ 6.4</u>

5 0
1 year ago
Read 2 more answers
20 POINTS ASAP The graphed line can be expressed by which equation? Math item stem image y+3=32(x+1) y−0=−32(x+1) y−3=32(x−1) y−
storchak [24]

Answer:

The Answer is: y - 3 = 3/2(x - 1)

Step-by-step explanation:

Given Points: (1, 3) and (-3, -3)

Find the slope m:

m = y - y1 / (x - x1)

m = 3 - (-3) / (1 - (-3))

m = 3 + 3 / 1 + 3

m = 6 / 4 = 3/2

Use the point slope form and point (1, 3):

y - y1 = m(x - x1)

y - 3 = 3/2(x - 1)

Hope this helps!  Have an Awesome day!! :-)

7 0
3 years ago
Read 2 more answers
A researcher is interested in the texting habits of high school students in the United States. The researcher selects a group of
vlabodo [156]

Answer:

(a)High school students in the United States.

(b)100 Students

(c)Statistic

Step-by-step explanation:

(a)Since the researcher is interested in the texting habits of high school students in the United States, the population for this study consists of all high school students in the United States.

(b)It is most often improbable to carry out research on an entire population of study. A <u>sample is taken to represent the population</u> and the results obtained from the sample are assumed to hold for the entire population.

In the given study, the researcher selects a group of 100 students to represent the High School students in the United States. This is the sample for the study.

(c)The researcher calculated the average number of text messages that each individual sends each day from the sample of 100 Students. This is an example of a Statistic. A statistic is a numerical data obtained from a sample.

Note: If the data were obtained from the entire population, it would be a <u>parameter.</u>

3 0
3 years ago
In which quadrant is the point (4, -5)?
oksian1 [2.3K]

Answer:

quadrant four (IV)

Step-by-step explanation:

hope this helps

5 0
3 years ago
Help asap Which explains how to find the quotient of the division below? -3 1/3 divided by 4/9
noname [10]

Answer:

-7\frac{1}{2}

Step-by-step explanation:

To find the quotient, convert the mixed number to an improper fraction first

-3\frac{1}{3}=-\frac{3*3+1}{3}=-\frac{10}{3}

Find the quotient now

\frac{(-10/3)}{(4/9)}=-\frac{10*9}{4*3}\\ \\=-\frac{90}{12}

Simplify

Divide by 6 both numerator and denominator

=-\frac{15}{2}=-7.5

Convert to a mixed number

-7.5=-(7+0.5)=-(7+\frac{1}{2})=-7 \frac{1}{2}

4 0
3 years ago
Read 2 more answers
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