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Stells [14]
3 years ago
13

How many solutions are there to this equation 3(x-4)+5-x=2x-7

Mathematics
1 answer:
Svetlanka [38]3 years ago
8 0
3x-12+5-x=2x-7
2x-7 =2x-7

Means there are infinite solutions.
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tekilochka [14]

y = sqrt(x) .... parent function

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<h3>Answer:   y = sqrt(-x+2)+3</h3>
5 0
2 years ago
An animal shelter houses only cats and dogs, there are 25% more cats these dogs. If there are 40 cats, how many dogs are there,
jok3333 [9.3K]

Answer:

There are 32 dogs and 72 animals in total.  

Step-by-step explanation:

In order to find the amount of dogs, you need to set up an equation to solve for the missing variable.  Let 'c' be the amount of cats and 'd' be the amount of dogs.  We know that there are 40 cats, so c = 40.  We also know that there are 25% more cats than dogs, so we can form an equation to express this difference:  1.25d = c, indicating that the number of cats is equal to the total number of dogs, plus an additional 25%.  Since we know c = 40, we can set our second equation equal to 40:  1.25d = 40.  Using inverse operations, we divide both sides by 1.25 to get d = 32.  So, d + c, or 32 + 40 = 72 total animals.  

6 0
3 years ago
A psychologist takes an SRS of 404040 people in their twenties and 606060 people in their fifties and surveys them about their a
Leto [7]

Answer: Approximately normal, because we expect 19.2 successes and 20.8 failures from people in their twenties, and 16.8 and 43.2 from people in their fifties, and all of these counts are at least 10.

Step-by-step explanation:

3 0
2 years ago
Isosceles trapezoid ABCD has legs AB and CD, and base BC. If AB = 3y - 4, BC = 2y -3, and CD = 4y - 18, find the value of y.
Kryger [21]

Answer:

   (6)

Step-by-step explanation:

Since it is an isosceles trapezoid the length of the two legs (i.e.  AB = 5y-10 and CD = 2y+8) are equal.  In other words,

5y - 10 = 2 y + 8

Subtract 2y from each side:

5y - 2y - 10 = 8

Now add 10 to each side

5y - 2y - 10 + 10 = 8 + 10 =>

3y + 0 = 18 =>  

3y = 18 =>

y = 6

8 0
2 years ago
Each box costs $525 how much money would you have to spend for a week?
lukranit [14]

1 day=525.00 × 7 days =3675

5 0
3 years ago
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