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3 years ago

Solve the system of equations by graphing. x+y=-7, 2x+y=6

Mathematics

2 answers:

kiruha [24]3 years ago

8 0

Step-by-step explanation:

I hope this is right, I used demos

masya89 [10]3 years ago

3 0

Answer: x=-1 Y = 8

Step-by-step explanation:

you can change it to y = -x-7, y=-2x+6

Then because the both equal “y” they must equal each other.

So -x+7 = - 2x+6

Then solve

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-25+t=-44 solve. Use the addition principle to find solution. T=

Taya2010 [7]

To find T, you add 25 to both sides, isolating the varible. This gives you T=-19

Hope this helped!

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3 years ago

Can you use doubling for 7 times 3

V125BC [204]

What do you mean doubling? You can add 7+7+7 which equals 21.

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3 years ago

Read 2 more answers

What are the values of mode and median in the following set of numbers? 1,3,3,6,6,5,4,3,1,1,2 Mode: 1, 2, Median: 2 Mode: 1,3, M

AURORKA [14]

<h3>given:</h3>

$1 \: 3 \: 3 \: 6 \: 6 \: 5 \: 4 \: 3 \: 1 \: 1 \: 2$

the mode and median of the given numbers set.

<h3>solution:</h3><h3>mode:</h3>

the most frequently occurred number.

$mode = 1 \: and \: 3$

<h3>median:</h3>

first arrange all the numbers in either decending or ascending order, then find the number in the middle.

$1 \: 1 \: 1 \: 2 \: 3 \: 3 \: 3 \: 4 \: 5 \: 6 \: 6$

$median = 3$

hence, the median of the following data set is 3 and the mode is 1 and 3

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2 years ago

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forsale [732]

Answer:

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3 years ago

(5m 3 + 3mn 2) + (-7m 2n + mn 2 - n 3) - (mn 2 + 2m 3)

lara [203]

Answer:

$3m^{3}+3mn^{2} -n^{3}- 14mn$

Step-by-step explanation:

I assumed that the numbers after the spaces were powers. This question was rather unclear.

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3 years ago