All categories

2 years ago

Find the solution of the system of equations. 3x – 3y = 18 3x – 8y = -2

Mathematics

1 answer:

Oksi-84 [34.3K]2 years ago

5 0

Answer:

x=10, y=4

Step-by-step explanation:

3x-3y=18

(-)3x-(-)8y=-(-)2 -3x+8y=2 add to first equation to eliminate x

5y=20

y=4

substitute y with 4

3x-3(4)=18

3x=30

x=10

x=10,y=4

You might be interested in

HELP

Allushta [10]

A scatter plot with a trend line that has a slope of 1/3 shows a positive correlation between the data. Positive correlation indicates that as one set of data increases, the other will also increase. A trend line shows a rough estimate on the relationship between two sets of data. A line with a slope of 1/3 is increasing, so this indicates that the data in the scatter plot are positively correlated.

4 0

2 years ago

Simplify the following expression.

Blababa [14]

Answer:

-6x

Step-by-step explanation:

I just answered this

it will equal -6x

good luck :)

5 0

3 years ago

If the total profit per month is Rs 200,000 and the revenue per month can be obtained twice the cost per month minus 50,000, fin

motikmotik

Step-by-step explanation:

200,000 X 50,000 = 100000000

7 0

2 years ago

Which of the following expressions is equivalent to –6?

Inessa [10]

Answer:

the correct answer po is letter A

Step-by-step explanation:

Tinatamad akong mag explain pero tama po 'yan

8 0

2 years ago

Find the distance between -4.3 and 0.8 on a number line as a decimal

evablogger [386]

Answer:

5.1

Step-by-step explanation:

Add 4.3 to 0.8

6 0

3 years ago