2 years ago

HELP PLEASE

Mathematics

1 answer:

melamori03 [73]2 years ago

7 0

Answer:

C, (12, -1)

Step-by-step explanation:

x - 2y = 14

x + 3y =9

Add 2y to both sides

x = 14 +2y

Substitute this into the second equation and solve

14 + 2y + 3y = 9

5y = 9 - 14 = -5

5y = -5

y = - 1

(you don't need to do this step because there is only one equation with y=-1, but just in case...)

Plug y into the first equation:

x - 2(-1) = 14

x - (-2)= x+2

x + 2 =14

x =12

Therefore, the answer is (12, -1)

The answer is C

You might be interested in

If you know that log5 (2) - log5 (12) = 0, which of the following is false?

garri49 [273]

Answer:

Step-by-step explanation:

A is correct because $log_5(12)$ was added on both sides, which is supported by the Additive Property of Equality

C is correct because the Quotient Property of Logarithms states that $log_bM-log_bN=log_b(\frac{M}{N} )$

so $log_5(x)-log_5(12)=log_5(\frac{x}{12} )$ is correct

D is correct because using the fact that $log_5x=log_512$ it is easy to figure out that x=12

For B, there is no property supporting that statement.

8 0

2 years ago

Which expressions are equivalent to the given expression?

expeople1 [14]

Answer:

It is the 2nd answer choice 4 check 5

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Can you please help me

Dennis_Churaev [7]

Answers A mark me brainliest

6 0

2 years ago

On Tuesday Wilbur bought 5 hats. On Wednesday half of the hats he had were

DochEvi [55]

Yes that’s correct

14 x 2 =28

28 - 5

=23

8 0

2 years ago

Read 2 more answers

14 5 18 24 15 28 34 __

Volgvan

This sequence seems to apply -9, +13, +6 repeatedly.
So after the 34, the -9 has to be applied. The next number would be 25.

5 0

3 years ago

Read 2 more answers