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jolli1 [7]
1 year ago
11

I need help pls WILL GIVE BRAINLIEST

Mathematics
2 answers:
irakobra [83]1 year ago
6 0

Answer:

(3, - 2 )

Step-by-step explanation:

- 3x - 7y = 5 → (1)

15x + 6y = 33 → (2)

multiplying (1) by 5 and adding to (2) will eliminate x

- 15x - 35y = 25 → (3)

add (2) and (3) term by term to eliminate x

0 - 29y = 58

- 29y = 58 ( divide both sides by - 29 )

y = - 2

substitute y = - 2 into either of the 2 equations and solve for x

substituting into (2)

15x + 6(- 2) = 33

15x - 12 = 33 ( add 12 to both sides )

15x = 45 ( divide both sides by 15 )

x = 3

solution is (3, - 2 )

Alex73 [517]1 year ago
4 0

Answer: (3,-2)

Step-by-step explanation:

-3x-7y=5\\15x+6y=33

5(-3x-7y)=5(5)\\-15x-35y=25

new system:

-15x-35y=25\\15x+6y=33

add.

-29y=58\\y=-2

plug in -2 for y

-3x-7(-2)=5\\-3x+14=5\\-3x=-9\\x=3

system:

(3,-2)

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If you can, give the explanation. I'm finding these very difficult.
Goryan [66]

Answer:

Gustavo

Step-by-step explanation:

if anything this looks like 38-19n, if the first term is n=1.

But as that isn't an option, gustavo should be correct, as his sequence would go down by 19 each time (yuki's would go up by 19 each time, not down like the sequence shows)

3 0
2 years ago
Consider the following graph of two functions,S(1) + 8(2)Step 1 of 2: Finds (1) + 8(2)Enable Zoom/Pan8(x) = x2 - 2x - 1S(x) = -x
kumpel [21]

.Given:

\begin{gathered} f(x)=-x+1 \\ g(x)=x^2-2x-1 \end{gathered}

ToDetermine: The value of

f(1)+g(2)

Solution

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3 0
1 year ago
Please help, I keep getting bots. <br> Using front-end estimation, find a reasonable estimate of:
Aleks [24]

Answer:

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Step-by-step explanation:

When you need to do rough mental math, you can do something like 720 vs 25 or 30 which is pretty simple to do in your head.

If you are very proficient in mental math, you can do something like 720 * 25, which is harder, but if you know the tricks, you can do this quickly.

720 * 25

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175

Add two zeros.

17,500

Multiply 25 by 2

50

Add a zero.

500.

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2 years ago
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scZoUnD [109]

Answer:

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Step-by-step explanation:

6 0
2 years ago
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30tens-3tens3tenths
Pachacha [2.7K]
300 - 30 3/10 = 269 7/10


hope this helps
7 0
2 years ago
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