2 years ago

What is ? : x - 9 = 0.7x + 0.6x

Mathematics

1 answer:

Veseljchak [2.6K]2 years ago

3 0

Answer:

x= - 30

Step-by-step explanation:

x-9=0.7x+0.6

x-9=1.3x

x-9-1.3x=0

x-1.3x=9

x(1-1.3)=9

-0.3x=9

x= - 9/0.3

x= - 30

You might be interested in

A city has 5 new houses for every 7 old houses. If there are 45 new houses in the city, how many old houses are there?

torisob [31]

Answer:

Step-by-step explanation:

Make a ratio:

5 : 7 = 45 : x

x = 63

6 0

2 years ago

Ocean floor takes up 2/5 space if 3/8 is coral how much space is coral

meriva

I might be wrong but,
2. 3
– ÷ –
5. 8
Use KFC (Keep change flip)
2. 8. 16. 1
– X – = –. = 1 –
5. 3. 15. 15
Hope it hepped

4 0

3 years ago

-x-6=3<br> How do u do this

Hatshy [7]

Answer:

x= -9......................

3 0

2 years ago

Read 2 more answers

The benefit of these systems is that they might make a driver aware of an object ahead well before the driver could see it using

hichkok12 [17]

What’s the question?

8 0

3 years ago

Read 2 more answers

Resuelve el siguiente problema aplicando las estrategias de solución de problemas.

scoundrel [369]

Say it in english so i cant try to help

7 0

2 years ago