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saveliy_v [14]
4 years ago
7

FAST!!!!!!!!!!!! I prefer the better answer though.

Mathematics
1 answer:
egoroff_w [7]4 years ago
3 0

Answer:

The answer to your question is: ( -10, 9)

Step-by-step explanation:

Equations given             - 8x - 9y = -1

                                                  y = 9

Substitute "y" in the first equation

                                      - 8x - 9(9) = -1

                                      - 8x - 81 = - 1

                                      - 8x = 81 - 1

                                      - 8x = 80

                                      x = 80 / -8

                                      x = -10

Point ( - 10, 9)                

You might be interested in
40% of the people attending the movie were adults if 20 adults attended the movie then how many people attended the movie (use a
podryga [215]

Answer:

50

Step-by-step explanation:

Let x represent the number of people that attended the movie.

And y the number of adults that attended the movie

Given;

Percent of adults that attended the movie = 40%

Number of adults that attended the movie y = 20

So,

40% of those that attended the movie area adults.

y = 40% of x

y = 40/100 × x

y = 0.4x

(Ratio of y to x is 4:10 or 0.4)

Making x the subject of formula;

x = y/0.4

Substituting the value of y given;

x = 20/0.4

x = 50

Therefore, 50 people attended the movie.

6 0
4 years ago
Y = f(x) = 2^x
Virty [35]

Answer:

The value of f(x) when x=-1 is 0.5

Therefore f(-1)=0.5

Step-by-step explanation:

Given that y=f(x)=2^x

to find the f(x) when x=-1 :

That is to find f(-1)

Put x=-1 in the given function f(x)=2^x

f(-1)=2^{-1}

=\frac{1}{2}

=0.5

Therefore f(-1)=0.5

The value of f(x) when x=-1 is 0.5

3 0
4 years ago
URGENTTT!!!!<br><br> If m∠PTS = 114° and m∠PTQ = 35°. What is the measure of ∠QTR?
Goryan [66]

Answer:

∠QTR = 44°

Step-by-step explanation:

Given ∠PTQ = ∠RTS = 35°, then

∠PTQ + ∠QTR + ∠RTS = ∠PTS ← substitute values

35 + ∠QTR + 35 = 114, that is

70 + ∠QTR = 114 ( subtract 70 from both sides )

∠QTR = 44°

8 0
3 years ago
Jane has $5 more than three times as much money as Lonnie has.Bob has $1 less than four times as much money as Lonnie has. All t
kkurt [141]
Starting equation:
92=J+L+B

To find how much money Jane has, we use the equation:
J=5+3L
To find how much money Bob has, we use the equation:
B=4L-1

Enter those equations in the problem

92=(5+3L)+L+(4L-1)
Combine like terms
92=4+8L
Subtract 4 to isolate variable
88=8L
Divide by 8 to isolate variable
11=L

Answer:
Lonnie has $11
Jane has $38
Bob has $43

side note: Lonnie is that one poor friend we all have
5 0
3 years ago
I need help please ​
bija089 [108]

Hey There!

Lets Just Work through your answers,

ⓧ A - An isosceles triangle is a triangle with (at least) two equal sides, so this would not apply to the given triangle.

:) B - A scalene triangle is a triangle in which all three sides have different lengths so this applies to the given triangle. One side measures 10, one measures 11, and one measures 12.1

ⓧ C - A right triangle is a type of triangle that has one angle that measures 90 degrees, which this triangle does not so this does not apply.

ⓧ D - In geometry, an equilateral triangle is a triangle in which all three sides are equal, so this does not apply to the given triangle.

ⓧ E - An obtuse triangle is a triangle with one obtuse angle (greater than 90°) and two acute angles, so this does not apply to the given triangle.

:) F - An acute triangle (or acute-angled triangle) is a triangle with three acute angles less than 90 degrees. So this applies to the given triangle.

In Summary, B & F classify the given triangle correctly.

If you could rate five starts & give brainliest that would be greatly appreciated!

Hope I helped, Have a good day.

4 0
4 years ago
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