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Ksenya-84 [330]
2 years ago
6

Solve for s in terms of q,r,and t. r=s+q-t

Mathematics
1 answer:
IgorC [24]2 years ago
5 0
Answer; r=s+q-t —-> S=t-q+r
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What is the value of x in the equation x - y = 30, when y= 15?
n200080 [17]
X-y=30
y=15
x-15=30
X=30+15
= 45
Hope this helps u !!
3 0
3 years ago
Mr. Wilson wants to park his car in the parking garage. To find the cost he uses the equation D=3H+6 where D represents the tota
kari74 [83]

Answer: 8 hours

Step-by-step explanation:

You know that Mr. Wilson uses the following equation to find the cost:

Then, if Mr. Wilson spent $30, you can follow these steps in order to calculate how many hours he parked in the parking garage:

1. You need to substitute  into the given equation:

2. Now, you must solve for "H":

Therefore, based on the result, you can conclude that Mr. Wilson parked his car in the parking garage for 8 hours.

4 0
2 years ago
Solving systems of linear equations by graphing 2x+3y=-12 and 10x+3y=12
Artyom0805 [142]

Answer:

  (x, y) = (3, -6)

Step-by-step explanation:

I like a good graphing calculator for solving systems of equations by graphing.

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If you're solving these by hand, you need to graph the equations. It can be convenient to put the equations into "intercept form" so you can use the x- and y-intercepts to draw your graph.

That form is ...

  x/(x-intercept) +y/(y-intercept) = 1

Dividing a standard-form equation by the constant on the right will put it in this form.

  x/(-12/2) +y/(-12/3) = 1 . . . . . . divide the first equation by -12

  x/(-6) +y/(-4) = 1 . . . . . . . . . . . the x-intercept is -6; the y-intercept is -4

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  x/(12/10) +y/(12/3) = 1 . . . . . . divide the second equation by 12

  x/1.2 +y/4 = 1 . . . . . . . . . . . . . the x-intercept is 1.2*; the y-intercept is 4

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The locations of these intercepts and the slopes of the lines tell you that the solution will be in the fourth quadrant. The lines intersect at (x, y) = (3, -6).

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* It can be difficult to draw an accurate graph using an intercept point that is not on a grid line. It may be desirable to put the second equation into slope-intercept form, so you can see the rise/run values that let you choose grid points on the line. That equation is y =-10/3x +4. A "rise" of -10 for a "run" of +3 will get you to (3, -6) starting from the y-intercept of (0, 4).

4 0
3 years ago
27a-(3b-(2a-(4a-c)+6a<br> (2a+3b-c)
lawyer [7]

Answer:

12a^2+18ab-6ac+25a-3b+c

Step-by-step explanation:

3 0
3 years ago
1) Tommy mows lawns and cleans pools during the summer. He earns $20 per lawn and $9 per
leva [86]

Answer:

Step-by-step explanation:

20L+9P\ge 1500,\ L=41\\ \\ 20(41)+9P\ge 1500\\ \\ 820+9P\ge 1500\\ \\ 9P\ge 680\\ \\ P\ge 75.6\\ \\ P=76

5 0
2 years ago
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