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Lady bird [3.3K]
3 years ago
10

Pls help will give brainliest

Mathematics
1 answer:
kari74 [83]3 years ago
4 0
4.3x(3.9 - 8.5) + 2.3y(-6.2 - 9.1)......when x = -2.1 and y = 3.5
4.3x(-4.6) + 2.3y(-15.3) 
4.3(-2.1)(-4.6) + 2.3(3.5)(-15.3)
-9.03(-4.6) + 8.05(-15.3)
41.538 - 123.165 
-81.627 <===
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Write 5x - 8y = -6 in y-intercept form
kirill [66]

y = 5/8x + 3/4

First, you have to subtract 5x from both sides. That will give you -8y = -5x -6

Then, you have to divide both sides by -8, which gives you y = 5/8x + 3/4

7 0
4 years ago
The market price of an article is Rs 1600 if it is sold for Rs 1472 what is the discount rate ? solve step ny step​
SVEN [57.7K]

Answer:

poor you

Step-by-step explanation:

3 0
3 years ago
Find the vertical asymptote(s) of f (x) = StartFraction x squared minus 1 Over 2 x + 6 EndFraction.
viktelen [127]
<h2>Explanation:</h2>

We have the function:

f(x)=\frac{x^2-1}{2x+6}

The vertical asymptote can be found when the denominator equal zero, therefore:

2x+6=0 \\ \\ 2x=-6 \\ \\ x=-3

So the vertical asymptote occur at x=-3

3 0
3 years ago
What percent is 25 is 12
Ray Of Light [21]

Answer: 48%

Step-by-step explanation:

I believe you meant, what percent of 25 is 12.

In that case, you would do 12/25 which equals 0.48

To convert a decimal into a percent, you would move the decimal point over 2 digits to the right. That would make 0.48 into 48%

So 48% is the answer.

Hope this helps :)

8 0
3 years ago
Read 2 more answers
HEEEEEEEEEEEEEEEEEEELP
Sever21 [200]

Answer:

<h2><u>2 miles per hour</u></h2>

Step-by-step explanation:

Speed = Distance / Time

If we measure distance in miles and time in hour, we will get the speed in miles per hour.

Distance = 1 + 2/3 miles, which expressed as an improper fraction is 5/3 miles.

Time = 50 minutes which expressed in hours will be 50/60 or 5/6 hours.

(You can also see that 10 minutes is 1/6 of an hour, hence 50 minutes is 5/6 of an hour)

Speed = Distance / Time

         = (5/3) / (5/6)

We know that dividing by "a/b" is same as multiplying by "b/a"

Hence, we have:

Speed = (5/3) * (6/5)

         = (5 * 6) / (3 * 5)

         = 30 / 15

         = 2

Mara walks at a speed of 2 miles per hour

4 0
3 years ago
Read 2 more answers
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