3 years ago

PLEASE HELP!!!!

Mathematics

1 answer:

alina1380 [7]3 years ago

7 0

Answer:

B, D, E

Step-by-step explanation:

-8x - 6y = 10

x + 7y = 9

You can multiply any of these equations by a constant without changing the solution.

B. 4x + 3y = -10 is equivalent to multiplying each side of the first equation by -½.

D. -16x - 12y = 20 is equivalent to multiplying each side of the first equation by 2.

E. 3x + 21y = 27 is equivalent to multiplying each side of the second equation by 3.

A. -2x + 7y = 9 is wrong. The signs don't match those of the second equation.

C. 24x + 18y = 10 is wrong. The signs don't match those of the first equation.

F. x - 14y = -18 is wrong. The coefficient of x should be -2.

You might be interested in

The railing on your front porch has 4 posts like the one pictured. You need to wipe them with a wash that will protect it from r

ollegr [7]

Answer:

its 25.14

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Sarah has completed the first few steps for constructing the inscribed circle for triangle ABC. She started by constructing the

mote1985 [20]

Choice A. You want all three angle bisectors

8 0

3 years ago

Read 2 more answers

°°°°°°°°°°°°°________________°°°°°°°°°°°°°°°°

Igoryamba

Complementary angles add up to 90 degrees whereas Supplementary angles add up to 180 degrees.

If this helps can I please have brainiest? Thanks

3 0

3 years ago

Read 2 more answers

A<br> What is the product of 7 square root of 2 and 6 square root of 6 in simplest radical form?

ivolga24 [154]

Answer: 84/3

Step-by-step explanation:

8 0

2 years ago

Solve -x > 8 or -x < 4.

nevsk [136]

Answer:

x<−8 or x>−4

Step-by-step explanation:

−x>8 or −x<4

We know either −x>8 or −x<4

−x>8(Possibility 1)

−x

−1

(Divide both sides by -1)

x<−8

−x<4(Possibility 2)

−x

−1

(Divide both sides by -1)

x>−4

5 0

2 years ago