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DedPeter [7]
3 years ago
8

A pair of pants costs twice as much as a shirt. The total cost of 1 pair of pants and 1 shirt is $18. If s represents the cost o

f 1 shirt, which equation could you use to find the cost of 1 shirt?
A:s/2=18
B:s plus s=18
C:2s=18
D:2s plus s= 18
Mathematics
1 answer:
Vlad [161]3 years ago
6 0

Answer:

See the explanation. :)

Step-by-step explanation:

As a side note, while I know you don't need to solve the problem and just need the equation, I'm going to solve it anyway so you can see how problems like this work so that you can solve them for yourself. :)

As the problem states, the cost of a single shirt (s) and a single pair of pants (p) TOGETHER is $18. It also states that a pair of pants (p) costs twice as much as a shirt (s). This, believe it or not, gives us all the information we need to solve the problem.

Pretty quickly, we can come up with two equations:

2s = p

p + s = 18

Then, through substitution, we find that:

2s + s = 18

Now, that right there is your answer, and you can just stop here to keep going if you'd like. I, however, am going to solve the problem and find the numbers. I implore you to continue reading.

Continuing on:

3s = 18

3s / 3 = 18 / 3

s = 6

Finally, we return to our original two equations to figure out the following:

2(6) = p

12 = p

Finally, we find that s = 6 and p = 12.

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PLEASE HELP NOW!<br> (-2, -4) and (-3, -3) in a linear equation
chubhunter [2.5K]

The linear equation is y = -x - 6

Step-by-step explanation:

To form a linear equation from two points lie on the line which the equation represented it

  • Find the slope of the line by using the formula m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}
  • Then use the slope-intercept form of the equation y = m x + b
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∵  Points (-2 , -4) and (-3 , -3) lie on the line

∴ x_{1} = -2 and x_{2} = -3

∴ y_{1} = -4 and y_{2} = -3

- Substitute these values in the formula of the slope

∵ m=\frac{-3-(-4)}{-3-(-2)}=\frac{-3+4}{-3+2}=\frac{1}{-1}

∴ m = -1

∵ The form of the equation is y = m x + b

∵ m = -1

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To find b substitute x and y in the equation by the coordinates of

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∵ x = -3 and y = -3

∴ -3 = -(-3) + b

∴ -3 = 3 + b

- Subtract 3 from both sides

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∴ The equation is y = -x + (-6)

∴ y = -x - 6

The linear equation is y = -x - 6

Learn more:

You can learn more about linear equation in brainly.com/question/4326955

#LearnwithBrainly

4 0
3 years ago
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Triss [41]

Answer:

The answer in the simplest form would be 28/9 or 3 1/9

Step-by-step explanation:

Very simple you would divide the 56 and the 18 by 2 and you get 28/9.

or you could change it to a improper fraction in that case it would be 3 1/9

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multiply both sides by 3

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