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a_sh-v [17]
3 years ago
11

What is the answer when doing substitution for x=-5y-2, and -8x-9y=264

Mathematics
1 answer:
Artemon [7]3 years ago
4 0
Answer: x= -42, y=8 >>> (-42,8)
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A certain breed of mouse was introduced onto a small island with an initial population of 320 mice, and scientists estimate that
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3 years ago
1 1/10 divided by 1 1/5
Black_prince [1.1K]

Answer:

  11/12

Step-by-step explanation:

(1 1/10)/(1 1/5) = 1.1/1.2 = 11/12

__

You can also work this using improper fractions:

(1 1/10)/(1 1/5) = (11/10)/(6/5) = 11/10×5/6 = (11×5)/(6×10)

  = (11×5)/(6×2×5) = 11/(6×2) = 11/12

6 0
3 years ago
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Which pair of expressions represents inverse functions?
faust18 [17]

In this question , we have to find, which option represents inverse functions.

Let's check out option b

Let it be y

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Switching x and y and solving for y,

x = \frac{y+3}{4y-2}

Performing cross multiplication

4xy -2x = y+3

Combining like terms

y(4x-1) = 3+2x

y = \frac{2x+3}{4x-1}
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f^{-1} (x) = \frac{2x+3}{4x-1}

Which is same as of the other function.

So correct option is b .

6 0
3 years ago
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Find the sum: (3x3 + 2x2 + x + 4) + (2x3 - x2 - 3x + 1)​
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Help plz what is 7-6v=-5-8v
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<u><em>v=-6 is the right answer. </em></u> First you had to subtract by 7 from both sides of equation, and it gave us, 7-6v-7=-5-8v-7. And then simplify, and it gave us, -6v=-8v-12. You can also add by 8v from both sides of equation, and it gave us, -6v+8v=-8v-12+8v. Next simplify, and it gave us, 2v=-12. Then you divide by 2 from both sides of equation, and it gave us, \frac{2v}{2}=\frac{-12}{2}. And finally simplify, and it gave us the answer is <u><em>v=-6 is the right answer.</em></u> Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie

3 0
3 years ago
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