1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
PolarNik [594]
4 years ago
6

6. 5x + 2y = -3 3x + 3y = 9

Mathematics
1 answer:
nalin [4]4 years ago
5 0

Answer:

x=-3

y=6

Step-by-step explanation:

5x+2y=-3             3x+3y=9

                            3x=9-3y

                              x=3-y

5(3-y)+2y=-3

15-5y+2y=-3

18=3y

6=y

                            x=3-y

                             x=3-6

                             x=-3

You might be interested in
Algebra problem, please help
Mariulka [41]
6 • x + 6 • 9

I’m pretty sure this is right because you have to distribute the 6 to both of the numbers inside of the parentheses

4 0
3 years ago
Read 2 more answers
Find the area of a regular pentagon with an apothem of 11 units. *
docker41 [41]

Answer:

<h2>440 square units</h2>

Step-by-step explanation:

We can find half of a side of the pentagon with the expression

tan(36\°)=\frac{s_{half} }{11}

Because, as a regular polygon, all its sectors have the same central angle, and the apothem divides equally each sector in two equal parts.

s_{half} \approx 8

Therefore, half of a side is 8 units long, which means each side measures 16 units.

Now, the area of a penthagon is defined by

A=\frac{p \times a}{2}

Where p is the perimeter and a is the apothem. Where the perimeter is the sum of all sides, which is 80 units.

A= \frac{80 \times 11}{2} =440 \ u^{2}

Therefore, the right answer is the second choice.

3 0
3 years ago
A rectangular garden has an area of 360 square feet. the length of the garden is 9 feet longer than the width. find the dimensio
rosijanka [135]

\huge\underline{\frak{  \:  \:  \:  \:  \:  \: Solution : \:  \:  \:  \:  \:  \: }} \\  \\

\frak {\pink{Let}}\begin{cases} \sf{\red{Breadth \:  be  \: x}}\\ \sf{\orange{The \:  Length = x + 9}}\end{cases} \\

\bigstar \: \underline{\textsf{According to the given Question :} }\\  \\

:\implies \sf Area = Length \times Breadth \\  \\  \\

:\implies \sf 360=(x + 9 ) x \\  \\  \\

:\implies \sf 360= {x}^{2} + 9x  \\  \\  \\

:\implies \sf  {x}^{2}   + 9x - 360 = 0\\  \\  \\

:\implies \sf  {x}^{2}   + 24x - 15x - 360 = 0\\  \\  \\

:\implies \sf  x(x + 24) - 15(x + 24) = 0\\  \\  \\

:\implies \sf (x + 24) \: (x - 15) = 0\\  \\  \\

:\implies \underline{ \boxed{ \sf  x =  - 24 \: or \: x = 15}}\\  \\  \\

\therefore\:\underline{\textsf{Ignoring the negative value, the Breadth of rectangular garden is \textbf{15 ft}}}. \\  \\  \\

<h2>_____________________...</h2>

\bigstar \: \underline{\textsf{Dimensions of rectangular garden :}} \\  \\

\bullet\:\:\textsf{The Breadth of rectangular garden = x = \textbf{15 ft.}} \\  \\

\bullet\:\:\textsf{The Length of rectangular garden = x + 9 = 15 + 9 = \textbf{24 ft.}} \\  \\

6 0
3 years ago
an airplane 30000 feet above the ground begins descending at a rate of 2000 feet per minute. write an equation to model the situ
choli [55]
A = 30,000 - 2000m    where A=altitude and m = number of minutes

After 5 minutes  A ( altitude) =  30,000 - 2000(5) = 20,000 feet 
3 0
4 years ago
What do I do? Help me please I'm stuck
Komok [63]
9/8 or 1 1/8
Yw and, make sure not to report and to do give me brainliest
3 0
3 years ago
Other questions:
  • Find each product <br> (x + 4)(2x2 – x+8)
    11·2 answers
  • The water works commission needs to know the mean household usage of water by the residents of a small town in gallons per day.
    7·1 answer
  • Complete the following proof. Given: SW is diameter of circle R m ST = 30° Prove: m RTW = 15°
    9·1 answer
  • Simplify the expression y * y^-2 * y^5
    14·2 answers
  • Ok so help pls?
    9·2 answers
  • What is the value of the expression below? (9 divided by 3)+4(6-7)
    8·2 answers
  • What is the measure of the missing angle?<br> 36°<br> 1090
    9·1 answer
  • NEED ANSWERS ASAP PLEASE
    13·2 answers
  • What is the missing terms in arithmetic sequence
    12·1 answer
  • Can you convert the stander linear equation 5x-3y=15 into slope intercept form?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!