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RideAnS [48]
3 years ago
8

Solve for X 4(x - 3) + 54 = -3x

Mathematics
1 answer:
Galina-37 [17]3 years ago
5 0

Answer:

  x = -6

Step-by-step explanation:

Subtract the right side, simplify, divide by the x-coefficient.

  4(x -3) +54 +3x = 0

  4x -12 +54 +3x = 0 . . . . eliminate parentheses

  7x +42 = 0 . . . . . . . . . . combine terms

  x +6 = 0 . . . . . . . . . . . . . divide by 7

  x = -6 . . . . . . . . . . . . . . . add the opposite of the constant

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Can someone please help and please show work
pychu [463]

Answer:


Step-by-step explanation:

4 and a half

8 0
3 years ago
The ratio of dogs to cats at a local animal shelter is 13/25. Which statement must be true?
Ivan

<em>Option:</em>

<em>a. for every 13 dogs, there are 25 cats. </em>

<em>b. there are twice as many cats as dogs at the shelter. </em>

<em>c. the shelter has more dogs than cats. </em>

<em>d. there are 25 animals in the shelter.</em>

Answer:

a. for every 13 dogs, there are 25 cats.

<em></em>

Step-by-step explanation:

Represent Dogs with D and Cats with C;

So;

\frac{D}{C} = \frac{13}{25}

By comparison:

D=13

C = 25

This implies that:

For every 13 D, there are 25 C

Hence: Option A is true

6 0
2 years ago
Write an equation to represent each function
Semenov [28]
1:24 and 2:20 and 3:30 and 4:16 and 5:12
6 0
2 years ago
Choose the option that best answers the question. Paracelsus University has two kinds of professors: academic professors and pro
NARA [144]

Answer:

percentage of professional professor are 75

Step-by-step explanation:

Given data

academic professors A = 60%

professors  tenured P = 70%

professors at Paracelsus University = 90%

to find out

what percent of the professional professors

solution

we know 90% of the professors are academic professors or tenured or both so we can say percent of academic professors = 60 + 70 - 90 = 40

because here

total = A + P - both

90 = 60 + 70 - both

both = 40

so professors  tenured will be here 70 - 40 = 30

so

percentage of professional professor are = 30 / 40 × 100

percentage of professional professor are 75

5 0
2 years ago
the sides of a triangle are in the ratio 3: 4: 5 what is the lenghth of each side if the perimeter of the triangle is 90cm
ehidna [41]

3x+4x+5x=90

combine like terms

12x = 90

divide by 12

x = 7.5

sides: 3(7.5) ,4(7.5) ,5(7.5)

    22.5, 30, 37.5

6 0
3 years ago
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