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Gre4nikov [31]
3 years ago
7

Find two numbers a+b is -4 and difference a-b is 4 what's your answer

Mathematics
1 answer:
Trava [24]3 years ago
6 0

Answer:

a=0, b=-4

Step-by-step explanation:

a+b=-4.....(1)

a-b=4.......(2)

(1)+(2): 2a=0

a=0

0+b=-4

b=-4

(a, b) =(0,-4)

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Please help! I'm stuck:(
irina [24]

Answer:

1st graph is Y=1x+0

2nd Graph is Y=-2/1x + 0

Step-by-step explanation:

Your slope is 1 for the 1st graph

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3 0
3 years ago
In a pen of goats and chickens, there are 40 heads and 150 feet. How many goats and chickens are in the pen?
s2008m [1.1K]

Hey there!!

A chicken has 1 head and 2 feet . A goat has 1 head and 4 feet

For heads, total = 40

Let us take the number of chickens as ' x ' and goats as ' y '

x + y = 40 ------------- ( 1 )

2x + 4y = 150 ----------- ( 2 )

Multiply the first equation with 2

2x + 2y = 80

2x + 4y = 150

Subtract the first equation from the first

2y = 70

y = 35

Number of goats = 35

substitute this in other equation

x + y = 40

x + 35 = 40

x = 5

Number of chickens are 4

Hope it helps!

6 0
3 years ago
PLEASE HELP ASAP!!!!
Paul [167]

Answer:

the answers are <u>B and D </u>

Step-by-step explanation:

please let me know if I am wrong

I found about the answers by determine bias questions from non bias questions.

6 0
3 years ago
Plz help, so confused, will report, just need these answers and explainations, correctly, thanks:)
Bad White [126]

Answer: 35

Step-by-step explanation:

6 0
2 years ago
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What is the greatest common factor of 75 and 30
igor_vitrenko [27]
The answer to this question is 15
3 0
3 years ago
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