All categories

3 years ago

Which of these steps will eliminate a variable in this system 3x-3y=6 6x+9y=3

Mathematics

2 answers:

Brrunno [24]3 years ago

4 0

Answer:

Step-by-step explanation:

This is because when you do a the answer states, multipliying the top by 2, makes the top equation 6x-6y=12. When you subtract the second from the first you get:

6x - 6y = 12

- 6x + (-)9y = (-)3

Which results in -15y = 9.

This results in an eliminated variable from the start of the system of equation.

Naily [24]3 years ago

4 0

Answer:

The correct answer is A.

Step-by-step explanation:

Trust

You might be interested in

Help I'm Timed!! PLZ!!!!!!!! the question is in the pic!

VladimirAG [237]

The answer is X is greater than -2! <3

6 0

4 years ago

How much longer is a 1-inch button than 3/8- inch button?

tankabanditka [31]

1 inch is the same as 8/8
Use this to solve
8/8 - 3/8 = 5/8
The 1 inch button is 5/8 longer than the other button. Hope this helps!

3 0

2 years ago

Read 2 more answers

Solve the inequality: −34 < −2(4x − 1)

Ne4ueva [31]

$- 34 < - 2(4x - 1) \\ - 34 < - 8x + 2 \\ - 34 - 2 < - 8x \\ - 36 < - 8x \\ 36 > 8x \\ \frac{36}{8} > x \\ x < \frac{9}{2}$

7 0

3 years ago

HELP MEEEEE PWESEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

BlackZzzverrR [31]

Answer:

<h2>Romania</h2>

U.S: 272,648,000÷9,364,520= 29.12

Step-by-step explaination

US: 29.12 people per square km

Romania: 22,609,000÷237,391= 95.24

Romania: 95.24 people per square km

Ghana: 18,339,000÷237,553= 77.20

Ghana: 77.2 people per square km

7 0

3 years ago

The scale on a map is 1 cm : 6 km. If two cities are 13 cm apart on the map, what is the actual distance between the cities?

OlgaM077 [116]

Its easy, multiply 6km by 13cm and you would get 78

8 0

3 years ago