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yuradex [85]
2 years ago
6

I'LL GIVE BRAINLIEST TO WHOEVER ANSWER FIRST AND CORRECTLY!

Mathematics
1 answer:
svlad2 [7]2 years ago
8 0

Answer:

(-1, 3)

Step-by-step explanation:

Add the two equations together:

(7x - 2y) + (2y - 5x) = -13 + 11

Simplify:

2x = -2

x = -1

Plug x=-1 into the first equation:

7(-1) - 2y = -13

-7 - 2y = -13

-2y = -6

y = 3

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Given y varies inversely as x, and y = 5 when x = 9. *Write the inverse function
Ivahew [28]

Answer:

y = 45/x

Step-by-step explanation:

Here, we want to write an inverse relationship

for an inverse relationship, the product of both variables will be equal to the constant term

Let us have the constant term as k

Thus, we have it that;

xy = k

9 * 5 = k

k = 45

So the inverse function is;

xy = 45

or y = 45/x

if y is a function of x, we can have it as;

f(x) = 45/x

4 0
2 years ago
For a sample of similar sized all-electric homes, the march electric bills were (to the nearest dollar): $212, $191, $176, $129,
miss Akunina [59]
Lowest to highest...

Range = $92 – $212 ...//Ans...
5 0
3 years ago
Solve<br> y=2x2-3x-1<br> y=x-3
4vir4ik [10]

Answer:

The value of x is 1 and y = -2

Step-by-step explanation:

y = 2x²- 3x - 1;

y = x - 3

2x²- 3x - 1 = x - 3

2x² - 3x - 1 - x + 3 = 0

2x² - 4x + 2 = 0

take 2 as common

2(x² - 2x + 1) = 0

x² - 2x + 1 = 0

x² - x - x + 1 = 0

x(x - 1) - 1(x - 1) = 0

(x - 1) (x - 1) = 0

x - 1 = 0 or x - 1 = 0

x = 1 or x = 1

Now,

y = x - 3

y = 1 - 3

y = - 2

Thus, The value of x is 1 and y is -2

<u>-TheUnknown</u><u>Scientist</u>

4 0
2 years ago
What is the least common multiple of 9, 17, and 51? A. 51 B. 102 C. 153 D. 867
Luden [163]

Answer:

<h2>C. 153</h2>

<em>Hope</em><em> this</em><em> helps</em>

<em>shshsgshsh</em>

3 0
3 years ago
What is the measure of x, if angle 6 equals 4x and angle 7 equals 2x + 34? 112° 68° 64° 17°
bonufazy [111]
The answer is 64 degrees

3 0
3 years ago
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