All categories

2 years ago

How many solutions does the following equation have? 7(y+3)=5y+8

Mathematics

1 answer:

Sedaia [141]2 years ago

6 0

Answer:

Alright well solve for y by simplifying both sides of the equation then isolating the variable

Exact form: y = - 13/2

Decimal form: y = - 6.5 Hope this helps have a nice day :)

Step-by-step explanation:

You might be interested in

please answer the question on the screenshot below, also please explain to me how you got your answer.

frutty [35]

QUESTION 1

The given functions are;

$f(x)=5x^2-2x$ and $g(x)=5x^2+x-4$

$(f+g)(x)=f(x)+g(x)$

$(f+g)(x)=5x^2-2x+3x^2+x-4$

We regroup like terms to obtain;

$(f+g)(x)=5x^2+3x^2-2x+x-4$

This simplifies to;

$(f+g)(x)=8x^2-x-4$

The correct answer is A.

QUESTION 2

The given functions are;

$f(x)=3x^2+5$ and $g(x)=x-2$ .

$(fg)(x)=(f(x))(g(x))$

This implies that;

$(fg)(x)=(3x^2+5)(x-2)$

$\Rightarrow (fg)(x)=3x^3-6x^2+5x-10$

The correct answer is B.

QUESTION 3

The given functions are

$f(x)=3x^2+10x-8$ and $g(x)=3x^2-2x$ .

$(\frac{f}{g})(x)=\frac{f(x)}{g(x)}$

$(\frac{f}{g})(x)=\frac{3x^2+10x-8}{3x^2-2x},x\ne0,\frac{2}{3}$

We factor to obtain;

$(\frac{f}{g})(x)=\frac{(x+4)(3x-2)}{x(3x-2)},x\ne0,\frac{2}{3}$

We cancel the common factors to obtain;

$(\frac{f}{g})(x)=\frac{x+4}{x},x\ne0,\frac{2}{3}$

The correct answer is A.

5 0

3 years ago

Which of the following numbers is not a perfect square? <br> 49 124 169 361

meriva

Answer: 124

Step-by-step explanation: 7^2=49; 13^2=169; 19^2=361. Only 124 cannot be expressed as a square of an integer.

5 0

2 years ago

Read 2 more answers

GEOMETRY - I NEED HELP!!!

Ainat [17]

Answer:

angle DLM= 21+50=71 degrees i think

Step-by-step explanation:

take the 2 from 2x and divide 42 by the 2 and you have your variable x solved

3 0

2 years ago

The ratio of goldfish to gallons of water is 9 to 4.

Salsk061 [2.6K]

For every 9 goldfish, there are 4 gallons of water.

7 0

2 years ago

Seven times a number is the same as 12 more than 3 times the number. find the number

Arada [10]

7x=12+3x
-3x. -3x
4x=12
x=3

6 0

2 years ago

Read 2 more answers