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Mazyrski [523]
3 years ago
13

Find the value of this expression if x = 5 and x=2 xy^2 / -3

Mathematics
1 answer:
Elina [12.6K]3 years ago
8 0

Answer:

-20/3

Step-by-step explanation:

here x=5 and y=2 then put the value and get answer.

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What is the value of y in the solution to the following system of equations?
dedylja [7]

Answer:

{x,y} = {33/19,-2/19}

Step-by-step explanation:

6 0
3 years ago
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A recent survey of 400 pet owners reveals that the ratio of cat owners to dog owners is 4 to 5. If there are 500 registered cat
Lady bird [3.3K]
Do 500 divied by 4 and its 125  so 125 people have dogs.
5 0
3 years ago
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Someone help please :(
Hunter-Best [27]

Answer:

Answers in step-by-step.

Step-by-step explanation:

We are going to make Sarah the variable "s."

Using the given information, the following equation is derived to calculate Sarah's distance.

  • S=2n-5

And the following equation will be used to calculate what Sarah collected using "p" for pledged money.

  • P=18S

If Sarah collected $450 in pledges, we can use the preceding formula to calculate her distance.

  • P=18S
  • 450=18S
  • 450/18=S
  • 25 miles = S

Using Sarah's distance, we can calculate Semir's either the first equation.

  • S=2n-5
  • 25=2n-5
  • 30=2n
  • 15=n
  • Semir walked 15 miles.

We already found Sarah's distance to be 25 miles.

Now SungSo is making the same amount as Sarah. He collects $450 total, but he got $72 from his grandmother initially, so subtract 72 from 450 to get the amount he collected from walking.

  • 450-72=$378

His formula is the same as Sarah's, but we'll use SS for his variable.

  • P=18SS
  • 378 = 18SS
  • 378/18=SS
  • 21= SS
  • SungSo walked 21 miles.

4 0
3 years ago
What value of x makes the equation 3(x-6)-8x= -2+5(2x+1) true
QveST [7]

Answer:

x= −7/5

Step-by-step explanation:

Step 1: Distribute and combine like terms

3(x−6)−8x=−2+5(2x+1)

(3)(x)+(3)(−6)+−8x=−2+(5)(2x)+(5)(1)(Distribute)

3x+−18+−8x=−2+10x+5

(3x+−8x)+(−18)=(10x)+(−2+5)(Combine Like Terms)

−5x+−18=10x+3

−5x−18=10x+3

Step 2: Subtract 10x from both sides.

−5x−18−10x=10x+3−10x

−15x−18=3

Step 3: Add 18 to both sides.

−15x−18+18=3+18

−15x=21

Step 4: Divide both sides by -15.

Hope this helps! :)

4 0
3 years ago
Express 5x - 2y - 12 = 0 in y=mx + b form and state the slope and y-intercept
dangina [55]

Answer:

Step-by-step explanation:

5x-2y-12=0

5x-2y+12-12=0+12

5x-2y=12

5x-5x-2y=12-5x

-2y=12-5x

(-2y)/-2=(12-5x)/-2

y=5/2x-6

slope= 5/2x up 5 over 2

y-intercept is -6

3 0
2 years ago
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