HEY GUYS PLEASE HELP ME I WILL MARK WHOEVER EXPLAINS IT WELL AS BRAINLIEST .!! -3X+3Y=24

1 answer:

3 0

-3x + 3y = 24
x + 2y = 13

(x + 2y) - 2y = 13 - 2y
x = 13 - 2y

-3(13 - 2y) + 3y = 24
-39 + 6y + 3y = 24
9y - 39 = 24
(9y - 39) + 39 = 24 + 39
9y = 63
9y ÷ 9 = 63 <span>÷ 9
y = 7

x + 2y = 13
x + 2(7) = 13
x + 14 = 13
(x + 14) - 14 = 13 - 14
x = -1

When x = -1
y = 7

An easy way to check:
-3x + 3y = 24
-3(-1) + 3(7) = 24
3 + 21 = 24
24 = 24

Since it is the same on both sides, our answers are correct. </span>

You might be interested in

Can someone help me ?? :)

LekaFEV [45]

C is the answer you are looking for.

7 0

3 years ago

Any number divisible by 5 is divisible by 10 ?

Inessa05 [86]

Answer:

Yes , the number should be even and divisible by 5 and then it can be divisible by 10 as well

3 0

3 years ago

Read 2 more answers

Write an equation of the line with slope 2/3 that goes through the point -2,5

irinina [24]

Answer:

y = 2/3x + 19/3

Step-by-step explanation:

First, this is your current equation: y = 2/3x + b. Plug in your point to the equation, it should look like this: 5 = 2/3(-2) + b. 2/3 times -2 equals -4/3. So, this is what your equation should look like: 5 = -4/3 + b. Add 4/3 to both sides of the equation to get 19/3 = b. Go back to your original equation and plug 19/3 to b. This is your final equation: y = 2/3x + 19/3. Hope this helped!

7 0

3 years ago

X=1/16y^2 the directrix of the parabola is

yan [13]

To solve this problem you must apply the proccedure shown below:

1. You have the following equation of a parabola, given in the problem above:

x<span>=1/16y^2

2. Then, based on the graph attached, you have:

p=y^2/4x
p=8^2/(4)(4)
p=64/16
p=4

3. The directrix is:

directrix=h-p
directrix=0-4
directrix=-4

The answer is:-4</span>

3 0

3 years ago

The seventh grade students are having an end-of-year party in the school cafeteria. There are 754 students attending the party.

Leno4ka [110]

Answer:

Determine the number of tables by dividing 754 by 6. If there is a remainder, the answer will need to be rounded tenths or hundredths . There is a remainder, so 125.6 tables are needed.

Step-by-step explanation:

8 0

3 years ago