All categories

3 years ago

(2.5x-9)+6x=-7

Mathematics

2 answers:

eimsori [14]3 years ago

6 0

1. 32/17 or 1.88235
2. X= 1
3. X = -3
4. X = 10

Rzqust [24]3 years ago

3 0

Answer:

first one: x=0.23529411

second one: x=-1

3rd one: x=-3

4th one: x=10

Step-by-step explanation:

i hope this helped but i use (math. way.)

You might be interested in

I WILL GIVE BRAINIEST TO THE BEST ANSWER

Natalka [10]

Domain is the values of x. x is from -5 to 7, it includes -5 ([ ] is the include symbol, but doesn't include 7, so C is the answer

6 0

2 years ago

Read 2 more answers

4% of 50<br> Percent of a quantity <br> M

Ksivusya [100]

Answer:

4% of 50 is 2

Step-by-step explanation:

6 0

2 years ago

Please answer the question with words

dangina [55]

Words words words words words words words words words words words words words words words words words words

7 0

3 years ago

Let a, b, c, and d be real numbers with a, c 6= 0. Prove that the lines y = ax+b and y = cx + d have the same x-intercept if and

Monica [59]

Step-by-step explanation:

We have got the lines :

$y=ax+b\\y=cx+d$

Both lines intercept the x-axis in the point :

$I = (i_{1} ,i_{2})$

In all point from x-axis the y-component is equal to 0.

$I=(i_{1},o)$

We replace the I point in the lines equations:

$0=a(i_{1})+b \\0=c(i_{1})+d$

From the first equation :

$0=a(i_{1})+b \\-b=a(i_{1})\\i_{1}=\frac{-b}{a}$

From the second equation :

$0=c(i_{1})+d\\ -d=c(i_{1})\\i_{1}=\frac{-d}{c}$

Then $i_{1}=i_{1}$

Finally :

$\frac{-b}{a}=\frac{-d}{c} \\\frac{b}{a}=\frac{d}{c} \\ad=bc$

y = ax + b and y = cx + d have the same x-intercept ⇔ad=bc

8 0

3 years ago

-45×68 what is the answer

Marianna [84]

Answer: -3060

68
-45
--------
340
272x <-- the x is in place of a zero
--------
3060

times the negative: -3060

4 0

2 years ago