All categories

3 years ago

-2x-5 = 19 I need help with this

Mathematics

2 answers:

Nezavi [6.7K]3 years ago

7 0

Answer:

x=-12

Step-by-step explanation:

-2x-5=19

+5 to both sides

-2x=24

÷-2 to both sides and you get -12

andre [41]3 years ago

3 0

Answer:

-12

Step-by-step explanation:

First you add five to the 19 and get 24 and then you divide -2x by 24 and you get -12

You might be interested in

10x-3y+2y<br> Write the expression with fewer terms.

zlopas [31]

Answer:

10x-1y

hope this helps

have a good day :)

Step-by-step explanation:

3 0

3 years ago

4x^2-5x=0 <br> Help me pls!!!!!

matrenka [14]

The answer to this is: x = 0, 5/4

8 0

3 years ago

PLEASE HELP MEEEEE!!!!!!!

OverLord2011 [107]

Answer:

Cheese: $4\frac{3}{8}$
Milk: $1\frac{2}{3}$
Pasta: $6\frac{1}{4}$

Step-by-step explanation:

Cheese:

$1\frac{3}{4} = \frac{7}{4}$
Set up a proportion: $\frac{\frac{7}{4} }{4} = \frac{x}{10}$
Cross multiply, then divide: 10 × 7/4 = 17.5, 17.5 ÷ 4 = 4.375
$4.375 = 4\frac{3}{8}$

Milk:

Set up a proportion: $\frac{\frac{2}{3} }{4} = \frac{x}{10}$
Cross multiply, then divide: 10 × 2/3 = $6\frac{2}{3}$ , $6\frac{2}{3}$ ÷ 4 = $1\frac{2}{3}$

Pasta:

$2\frac{1}{2} = \frac{5}{2}$
Set up a proportion: $\frac{\frac{5}{2} }{4} = \frac{x}{10}$
Cross multiply, then divide: 10 × 5/2 = 25, 25 ÷ 4 = 6.25
$6.25 = 6\frac{1}{4}$

I hope this helps!

4 0

3 years ago

Consider the function f(x)=x3+3x2â51x+91. What is the remainder if f(x) is divided by (x+9)? Do not include (x+9) in your answer

makkiz [27]

Answer:

The remainder is 64

Step-by-step explanation:

Consider the function $f(x)=x^3+3x^2-51x+91$

Use synthetic division to divide by x+9

x+9=0, x=-9

divide the given f(x) by -9 using synthetic division

-9 1 3 -51 91

0 -9 54 -27

--------------------------------------------------

1 -6 3 64

The remainder is 64

5 0

3 years ago

9a+b-8c-2(a+3b-c) simplified

alekssr [168]

Answer:

The correct simplified answer for 9a + b - 8c - 2 (a + 3b - c) would be 7a - 5b - 6c

Step-by-step explanation:

Hope this helps! Sorry if there is no explanation, I am kinda in a rush.

5 0

3 years ago

Read 2 more answers