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2 years ago

Y + 3y + 5y = -18 what is the value of y

Mathematics

1 answer:

ANEK [815]2 years ago

7 0

Answer:

y = -2

Step-by-step explanation:

Step 1: Combine like terms.

$(y+3y+5y)=-18$
$9y=-18$

Step 2: Divide both sides by 9.

$9y/9=-18/9$
$y=-2$

Step 3: Check if solution is correct.

$-2+3(-2)+5(-2)=-18$
$-2-6-10=-18$
$-18=-18$

Therefore, y = -2.

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4 pounds covers434 sq ft how many pounds needed for 6944 square feet

Ivenika [448]

Answer:

You would need 64 pounds.

STEP BY STEP EXPLANATION:

4 pounds covers 434 sq ft

434 goes into 6944, 16 times

16 x 4 = 64

I hope this helps :)

Have a nice day!

6 0

3 years ago

F(x) = x2 + 1 g(x) = 5 – x<br><br> (f + g)(x) =

Gnom [1K]

Answer:

$(f + g)(x) = {x}^{2} - x + 6$

Step-by-step explanation:

We have

$f(x) = {x}^{2} + 1$

and

$g(x) = 5 - x$

We want to find (f+g)(x).

By the algebraic properties of polynomial functions,

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

$(f + g)(x) = {x}^{2} + 1 + 5 - x$

This simplifies to

$(f + g)(x) = {x}^{2} - x + 6$

We can't simplify further, hence the simplest form

4 0

3 years ago

What is the value of x?<br> x = ___°

xenn [34]

I believe the answer to be 45
Hope this helps you

5 0

2 years ago

Read 2 more answers

A set of equations is given below:

Zanzabum

The answer is: [A]: "No solution" .
_______________________________________________
Note: Given:
_______________________________________________
y = 4x + 8 ;
y = 4x + 2 ;
_______________________________________________

Since: "y = y" ;

4x + 8 = 4x + 2 ; which is not true;
______________________________
4x + 8 ≠ 4x + 2 ; since, "8 ≠ 2" ;

Note: Suppose: "4x + 8 = 4x + 2" ;

→ Subtract "4x" from each side of the equation:

4x + 8 − 4x = 4x + 2 − 4x ;

to get:
_________________
" 8 = 2 " ; not true ; since "8 ≠ 2" ;
______________________________
Also, suppose:
_______________________________
4x + 8 = 4x + 2 ;

→ Subtract "2" from BOTH SIDES of the equation;

4x + 8 − 2 = 4x + 2 − 2 ;

to get:

4x + 6 = 4x

(Note: "4x + 0 = 4x" ; but "4x + 6 ≠ 4x") l

But even if we have:

4x + 6 = 4x ;

→ Subtract "4x" from EACH side of the equation:

4x + 6 − 4x = 4x − 4x ;

to get:

6 = 0 ; which is not true; "6 ≠ 0" .
____________________________________
The correct answer is: [A]: "No solution" .
______________________________________

4 0

2 years ago

What is the value of this expression when a=20 5a

Darina [25.2K]

Answer:

100

Step-by-step explanation:

Given : $a=20$