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4 years ago

Thirty identical chair cost 1,680 how much does ome chair cost

Mathematics

2 answers:

Ghella [55]4 years ago

7 0

1680 dollars / 30 chairs = 56 so the amount od dollars per chair is $56

Nikolay [14]4 years ago

4 0

if the chairs are a total of $1680 then divided by 30 should be 56, if youre asking for the cost of chair the answer is 56

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Draw the graph of the line that is perpendicular to Y= 4X +1 and goes through the point (2, 3)

spayn [35]

Given:

$\begin{gathered} y=4x+1 \\ \text{ point }(2,3) \end{gathered}$

To find:

Draw a graph of a line that is perpendicular to the given line and passing through a given point.

Explanation:

As we know that relation between two slopes of perpendicular slopes of lines:

$m_1.m_2=-1$

Slope of given line y = 4x + 1 is:

$m_2=4$

So, the slope of line perpendicular to given line is:

$m_2=-\frac{1}{4}$

Also, so line equation that is perpendicular to given line is:

$y=-\frac{1}{4}x+c...........(i)$

Also, the required line is passing thorugh given point (2, 3), i.e.,

$\begin{gathered} 3=-\frac{1}{4}(2)+c \\ c=3+\frac{1}{2} \\ c=\frac{7}{2} \end{gathered}$

So, line equation that is perpendicular to given line is:

$y=-\frac{1}{4}x+\frac{7}{2}$

The required graph of line is:

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2 years ago

Find A+B, A, B, C, or D.

klio [65]

Answer: the answr is b because its divisble

Step-by-step explanation:

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3 years ago

Help me please 10 points I’m only in 8th

DaniilM [7]

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4 years ago

Are these expressions equivalent 5(5c+6) and 25+30c

pogonyaev

Answer:

Step-by-step explanation:

If you where to simplify them it would be 25c + 6 and 25 + 30c

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3 years ago

The mayor of a town places a map of the town on a coordinate grid with Town Hall at the point (0,0) and with each unit represent

Alexxandr [17]

The town will spend $202.5 on laying the pipes.

Step-by-step explanation:

Given points are;

(-2,-4) and (6,-5)

$x_1=-2, \ \ \ y_1=-4\\x_2=6,\ \ \ \ y_2=-5\\$

Distance of two points is;

$Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\Distance=\sqrt{(6-(-2))^2+(-5-(-4))^2} \\Disatnce=\sqrt{(6+2)^2+(-5+4)^2} \\Distance=\sqrt{(8)^2+(-1)^2}\\Distance=\sqrt{64+1} \\Distance=\sqrt{65} \\Distance= 8.1 \units$

As one unit represent a mile, therefore,

Distance = 8.1 miles

Cost of laying 1 mile = $25

Cost of laying 8.1 miles = 8.1*25 = $202.5

The town will spend $202.5 on laying the pipes.

Keywords: distance, points

Learn more about distance at:

#LearnwithBrainly

7 0

3 years ago