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quester [9]
3 years ago
12

WILL GIVE BRAINEST TO CORRECT ANSWER (50 points)

Mathematics
2 answers:
LuckyWell [14K]3 years ago
6 0

Answer:

The system of equations has infinite solutions. True for all y and x.

Given equations:

x + 4y = 0

20y = - 5x

Make x the subject for equation 1:

x + 4y = 0

x = -4y

Plug x as -4y in second equation:

20y = - 5x

20y = - 5(-4y)

20y = 20y

0 = 0

L.H.S = R.H.S

True for all y.

Therefore true for all x.

KatRina [158]3 years ago
5 0

Answer:

x=1   y=(-1/2)   putting those in 20x1=20   so 20= then you put -1/2 and multiply it by the -5  that would be your answer

Step-by-step explanation:

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Need the answer please 3 please answer
photoshop1234 [79]

Answer:

Positive 8

Step-by-step explanation:

The end value of -(-8) would be positive eight because when you multiply a negative by a negative, you get a positive value.

This question is essentially -1 times -8, which would equal 8

(The answer would be: 8)

I hope this helps!

7 0
3 years ago
Hello! I wanted answer with explanation
Anettt [7]
25600

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3 years ago
Is -6, -38 a solution to y= 7x+4
Sunny_sXe [5.5K]

Answer:

Yes, (-6,-38) is a coordinate pair off the equation

Step-by-step explanation:

Plug y=7x+4 into your graphic caculator

press 2ND, GRAPH and scroll up to see the point.

4 0
3 years ago
What city is located at 39 n and 75 w
Zigmanuir [339]
I think its Philadelphia hopes this helps...
7 0
4 years ago
During the holiday sale, the store discounted all items 1/3. What is the discount on a $19.95 item? plz help me
Ronch [10]

Answer:

Discount Final Price Each

1/3 off $ 19.95. $ 13.30

Step-by-step explanation:

I think its 13.30

4 0
3 years ago
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