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mamaluj [8]
3 years ago
9

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the

Mathematics
2 answers:
Pani-rosa [81]3 years ago
4 0

Answer:

10x + 5y = 11

Step-by-step explanation:

I usually find it in slope intercept then convert, it's easier for me.

First you find slope using delta y over delta x giving you -2/5.

so you have y=-2/5x + b

To find b plug in a point and solve down

1 = -2/5(3) +b

1+6/5 = b

b = 11/5

y=-2/5x + 11/5

Then you convert it to Ax+by=C form,

multiply by 5

5y = -10x + 11

move x

10x +5y = 11

Rudik [331]3 years ago
4 0

Answer:

2x+5y-11 =0

Step-by-step explanation:

Givens

Coordinates (3,1) and (-2,3)

We need to find the equation of the line that passes through those points.

First, we have to find its slope with the following formula

m=\frac{y_{2}-y_{1}  }{x_{2} -x_{1} }

We replace the given points

m=\frac{3-1}{-2-3}=\frac{2}{-5}

Now, we use the point-slope formula to find the equation

y-y_{1} =m(x-x_{1} )\\y-1=-\frac{2}{5}(x-3)\\ y-1=-\frac{2}{5}x +\frac{6}{5}\\ y+\frac{2}{5}x-\frac{6}{5}-1=0\\\frac{2}{5}x+y-\frac{11}{5} =0

But, the standard form is Ax+By+C=0

So, if we multiply the equation by 5, we would have a better representation

2x+5y-11 =0

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3 years ago
7) A school store buys pencils for $0.15 each.
denis-greek [22]

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Answer:

  $3.36

Step-by-step explanation:

On each pencil, the profit was ...

  pencil profit = pencil price - pencil cost

  pencil profit = $0.22 -0.15 = $0.07

The number of pencils sold was ...

  (4 dz)(12 pencils/dz) = 48 pencils

Then the total profit was ...

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The store made a profit of $3.36 from pencils.

8 0
3 years ago
Prime factorization of -500
Irina18 [472]
Since it is a negative number, it does not have a factor. factors of a number can only be positive.

3 0
4 years ago
18(x + 1) = -54 pls help solve this...​
serg [7]

Answer:

x = 71

Step-by-step explanation:

18(x + 1) = -54

to start off, subtract 18 from both sides

18 - 18(x + 1) = -54 - 18

that should give you

x + 1 = 72

(its safe to take out paranthesis from problem by now) now take away 1 from each side

x + (1 - 1) = 72 - 1

that should give you

x = 71

7 0
3 years ago
Joe wants to buy a $180 number that's on is on sale the snowboard is 30% off what is the sale price of the snowboard (show work
Yuri [45]

Answer:

Step-by-step explanation:

Assuming that the Skateboard is $180, and you are asking for the price when it is 30% off.

180 * .70 = $126

Another way of solving the question is finding 10 % of 180, which is 18. And you are looking for 30% less, so 18 * 3 = 54, which is 30% of 180.

180 - 54 = 126

6 0
3 years ago
Read 2 more answers
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