3 years ago

Plz help, I will mark brainliest

1 answer:

7 0

X > 10 Because if you remove the parenthesis and distribute 4 through the parentheses - 8x + 8 + 12. Then you add 8 and 12 which equals 20. Then you move the constant to the right-hand side and change its sign. You calculate 100 - 20 which give you 80 and divide then which gives you 10.

Hopefully this helps! <3

You might be interested in

4z−(−3z)=<br> combining like terms

uranmaximum [27]

For combining like terms: it is 7z

3 0

3 years ago

Read 2 more answers

Solve by substitution y=x+4, y=2x+5

Amiraneli [1.4K]

X+4=2x+5
-1=x
hope this helps

4 0

2 years ago

Find the second derivative of the function P(t) =(2t+4)/(t+1)

vitfil [10]

use the quotient rule then after using it the first time use it again on your resulting equation, since you are looking for the second derivative

3 0

3 years ago

16 2/3% of 21.6 is?

soldier1979 [14.2K]

Answer:

Step-by-step explanation:

7 0

4 years ago

X-3y-7=0 , 3x-3y-15=0 solve this using cross multiplication

rewona [7]

Answer:

x = 4 , y = -1

Step-by-step explanation:

x - 3y = 7 -- (1)

3x - 3y = 15 -- (2)

Rewriting (1), x = 3y + 7 -- (1)'

Substituting (1)' into (2),

3 ( 3y + 7 ) - 3y = 15

9y + 21 - 3y = 15

6y = -6

y = -1 -- (3)

Substituting (3) into (1),

x - 3 ( - 1 ) = 7

x + 3 = 7

x = 4 -- (4)

According to (3) and (4),

x = 4 , y = -1

8 0

3 years ago