PLEASE HELP ASAPPP!!!

Directions: Show all of your work for the following two problems on a seperate sheet of paper. Take a picture of your work and attach the picture to this assignment.

1. Solve the following system of equations, show all your work on a separate sheet of paper, and check your answer. Write the solution as a point (x,y) (4 points).

3x + 5y = -40

–x + 4y = -15?



2. Suppose you and your friends form a band and you want to record a demo. Studio A rents for $125 plus $50 an hour and Studio B rents for $200 and $30 an hour. Let t = the number of hours and c = cost.

Write an equation to represent the cost at each studio (2 points)

Solve the system (2 points)

Write the solution as a point (x, y) (2 points)

Answers

Answer 1

Answer:

x = -5  y = -5

Step-by-step explanation:

–x + 4y = -15

     - 4y  -4y

-1(-x = -4y - 15)

x = 4y + 15

Substitute x = 4y + 15 into 3x + 5y = -40

3(4y + 15) = -40

17y + 45 = -40

      - 45   -45

17y = -85

/ 17    /17

y= -5

Substitute y = - 5 into x = 4y + 15:

x = 4(-5) + 15

x = -20 + 15

x = -5

Answer 2

Answer:

Part I

(-5,-5)

Part II

(3.75, 312.50)

Step-by-step explanation:

Part I

(1) 3x + 5y = -40

(2) -x + 4y = -15

solve for x in (2)

x = 15 + 4y

substitute into (1)

3(15+4y) + 5y = -40

45 +12y + 5y = -40

45 +17y = -40

17y = -85

y = -5

substitute y = -5 into (1)

3x + 5(-5) = -40

3x -25 = -40

3x = -15

x = -5

so  (-5, -5)

Part II

Studio A  

C = 125 + 50t

Studio B

C = 200 + 30t

125 + 50t = 200 + 30t

20t = 75

t = 3.75

(3.75, 312.50)


Related Questions

Answer this please i am stuck

Answers

Answer:

adasdasdadsads

Step-by-step explanation:

Answer:

its impossible

Step-by-step explanation:

Is the following relation a function? Please help

Answers

No because if you do the vertical line test, it will go through two parts of the circle instead of one.

Answer:

No it is not a function.

Step-by-step explanation:

It goes through 2 points not 1.



Use the ALEKS calculator to write as a percentage.
5/17
Round your answer to the nearest tenth of a percent.

Answers

Answer:

The answer is 29.4%

Step-by-step explanation:

The given is to be rounded to the nearest tenth percent so

5/17 = 0.294

0.294 * 100 = 29.4% since nearest tenth percent

The required answer is 29.4%

Given fraction is 5/17.

Percentage is a way of expressing a fraction or proportion as a portion of 100. It is a mathematical concept used to represent relative quantities or values in terms of hundredths. The word "percent" is derived from the Latin words "per centum," which mean "per hundred." It is denoted by the symbol "%".

To convert a fraction to a percentage, and multiply the fraction by 100.

Let a and b be the rel numbers. To convert the fraction a/b into percentage by multiply the fraction by 100.

That is , a/b x 100.

And on simplification gives the fractions.

To convert 5/17 to a percentage, we have:

(5/17) x 100 = 29.4117647...

Rounding this to the nearest tenth of a percent, we get:

29.4%

Therefore, when rounded to the nearest tenth of a percent, 5/17 is approximately 29.4%.

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Find the figure of the volume

Answers

Answer:

1300 ft

Step-by-step explanation:

to calculate volume you multiple LengthxHeightxWidth

20 x 13 x 5 = 1300

What must the measure of the
angle marked yº be in order for the seat of the bench to be
parallel to the ground?

Answers

Answer:

Linear pair angle of 136 degree =180-136

=44

Therefore angle y is alternate angle of 44

Therefore angle y=44

Answer:

44

Step-by-step explanation:

180 - 136 = 44

Find the GCF of 4x3and7x5

Answers

Answer:

GCF of 4 x 3 should be 1

GCF of 7 x 5 should also be 1

Hope this helps, and sorry if it is incorrect, there isn't very much context to this question!

could someone give me answers for these three? no wrong answer or spam or link

Answers

Answer:

Equation: 2x + 13 = 5x - 20

x = 11

<FDG = 35

Step-by-step explanation:

These are vertical angles so they're equal to each other:

2x + 13 = 5x - 20

2x - 5x = -20 - 13

-3x = -33

x = 11

<FDG:

5x - 20

5(11) - 20

55 - 20

35

The function P(h)= 2h- 15 represents the profit a company makes selling h hot dogs. Which is the most appropriate domain of the function?
a : all positive intergers
b : all positive real numbers
c : all positive rational numbers
d : all positive irrational numbers

Answers

The requried most appropriate domain for the function P(h) would be the set of all non-negative real numbers. The domain is b, all positive real numbers.

What is a domain?

The domain is defined is a set of values of the independent variable for which there is a certain value of the dependent variable exists in the range of the function.

The function P(h) = 2h - 15 represents the profit a company makes selling h hot dogs. In general, the domain of a function represents the set of all possible input values for which the function is defined.

In this case, the function can be defined for any non-negative value of h, since the company can sell any number of hot dogs, including zero. However, the function may not be defined for negative values of h, since it does not make sense to talk about selling a negative number of hot dogs.

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Please answer this fill it to least to greatest

Answers

Answer:

7, 7 1/8, 7 3/8, 7 5/8, 7 3/4, 8, 8 1/4, 8 1/2, 8 7/8

Step-by-step explain:

7 is the smallest number in the given numbers. 7 1/8 is the second smallest because 1/8 is smaller than 1/4. You can also think of it like you have a pizza/pie/cake and 1/8 of that cake is 1 piece of the cake that has 8 pieces in total. 1/4 on the other hand is a bigger piece. You can use this information to figure out future problems. 1/4 is the same as 2/8. In other words, 1/4 is equal to 2 slices of pie/cake/pizza/whatever you want it to be because if you take a cake, cut it into 4 pieces, then cut the 4 pieces in half. You will get 8 pieces.

Convert the number to standard notation.
3.8 x 10^-6

Answers

Answer:

3.8E-6

Step-by-step explanation:

Solve using the standard algorithm. 82.14 ÷ 0.6 ≅

Answers

Answer:60

Step-by-step explanation:

Rewrite the expression, the quotient of k decreased by 4 and 9, using the division symbol and as a fraction.​

Answers

Answer:

(k - 4) ÷ 9

(k - 4) / 9

Step-by-step explanation:

k decreased by 4 = k - 4

quotient of k decreased by 4 and 9

= (k - 4) ÷ 9 (using division sign)

Or

= (k - 4) / 9 (as a fraction)

Find the key features for m [x]=3x^2+13x-30

Answers

Answer:

x1= -6 and x2= 5/3

Step-by-step explanation:

good luck

Select the correct answer.
If the graph of f(x) = 4x is shifted 7 units to the left, then what would be the equation of the new graph?
A.
g(x) = 4x + 7
B.
g(x) = 4(x + 7)
C.
g(x) = 4(x − 7)

Answers

Answer:

g(x) = 4(x + 7)

Step-by-step explanation:

i had this on a test i just took so it told me it was right bit if it is not i am sorry and i will recheck

It would be B because when a graph is shifted left, it would be positive on the inside of the parenthesis. If it was shifting to the right, it would be negative

Emerson has some yellow stickers and some green stickers. She
has 30 green stickers and the ratio of vellow stickers to green
stickers is 2.5. How many yellow stickers does Emerson have?

Answers

answer:

12

explanation:


the ratio is 2:5 so we know that for every 5 green stickers, Emerson has 2 yellow stickers.

So, we know that 5 goes into 30 6 times so all you have to do is 6 x 2 = 12

Samuel saved some money for a new phone, but then he spent $24 of his savings on a
pair of headphones. Now he has $189 left. Let d be the number of dollars Samuel had
originally saved. Write and solve an equation to find d.

Answers

Answer:

213$

Step-by-step explanation:

24$ on headphones

189$ left

so you add the use and what is left an u get 213$ do not forget to write $ when u are finished :)

help m.e please please

Answers

Answer:

(-3, -4)

Step-by-step explanation:

The solution is where the two lines intersect. Therefore, the x-coordinate is -3, and the y-coordinate is -4.

Another way to solve this would be to set the to equations equal to each other, so 2x+2 = -4. Therefore, 2x = -6, and x = -3. And from the second equation, y = -4.

What is the volume of a hemisphere with a radius of 4.9 ft, rounded to the nearest
tenth of a cubic foot?

Answers

The volume of the hemisphere with the given value of radius to the nearest tenth is 246.4 cubic foot.

Hemisphere

A hemisphere is gotten when a sphere is cut into two equal halves.

The volume of a hemisphere is expressed as;

V = (2/3)πr³

Where r is the radius and π is pi ( π = 3.14 )

Given the data in the question;

Radius of the hemisphere r = 4.9ftVolume of the hemisphere V = ?

To determine the volume of the hemisphere, we substitute our values into the expression above.

V = (2/3)πr³

V = (2/3) × π × (4.9ft)³

V = (2/3) × π × 117.649ft³

V = 246.4ft³

Therefore, the volume of the hemisphere with the given value of radius to the nearest tenth is 246.4 cubic foot.

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Jack pasted 2 leaves on each picture he made. He used 6 in all. How many pictures did jack made?

Answers

Answer:

Jack made 3

Step-by-step explanation:

You know why? The reason is he pastes 2 for each picture and he used all 6 so what is 2*3= 6 So that concludes that he made 3 pictures

Answer: 3 pictures

Step by Step: If he pasted 2 leaves on each picture and he used a total of 6 leaves counting by 2 he made 3 pictures.

29 thanks and no links or you get reported

Answers

Answer:

$480.11 (C)

Step-by-step explanation:

$575.26 - $95.15 = $480.11

Plz help ASAP just say give me the answer and the number the answer goes in thank you very much

Answers

Answer:

1) 85

2) 95

3) 75

4) 90

5) 120

6) 110

7) 65

8) 130

use the pythagorean theorem to find the unknown side of the right triangle? hii does anyone know the hypotenuse length?

Answers

Answer:

17

Step-by-step explanation:

8^2 + 15^2 = c^2

64 + 225 = c^2

√289 = c

c = 17

Answer:

yes the answer is 17

Step-by-step explanation:

all you have to do for next time is a^2+b^2=C^2

a and b are legs or the lines that are connected to the right angle. the c is the hypotenuse which is always longer than the legs

can anyone help with this??

Answers

Answer:

y=x+6

Step-by-step explanation:

the co-ordinate points are (-2,4)and (4,10) so y2-y1

                                                                           x2-x1    

10-4 =6

4-2    =6   which will be 1 as the gradient so you will form an equation

y-10 =1 cross multiply the values with one so the answer will be y-10=x-4

x-4  

take -10 to the other side it will be y=x-4+10 hence y= x+6

                                           

The measure of an angle is 83.4°. What is the measure of its supplementary angle?

Answers

Answer:

The supplementary angle is 96.6.

Step-by-step explanation:

Complementary angles make up to 90 degrees, but since this is a supplementary angle, it'll make up to 180 degrees. From there, you subtract 180-83.4 to get 96.6 degrees.

7n; n=5?
I have no idea what the answer is, please help.

Answers

Answer:

35

Step-by-step explanation:

7n;n=5

7n

n=5

7×5=

n=35

Answer:

35

Step-by-step explanation:

so 7n; n=5

substitute the "n" attached to 7 with 5

so it would be 7 times 5 which equals 35

solve for x
enter the solutions least to greatest
-x^2 -8=-33

Answers

Hello, the answer is 27478 also that is not correct I just need to get the points to ask

Answer:

[tex] \bf \huge ± 5 [/tex]

Step-by-step explanation:

Given :

- x^ 2 - 8 = - 33

to find :

find ''x''

explanation :

⟼ - x^ 2 - 8 = - 33

step 1 : add 8 to both sides

⟼ − x² − 8 + 8 = − 33 + 8

⟼ - x² = - 25

step 2 : Divide both sides by -1

⟼ - x² / - 1 = - 25 / - 1

⟼ x² = 25

step 3 : take square root

⟼ x² = 25

⟼ x = ± √25

⟼ x = ± 5

x = ± 5.

Help me pleaseeeeeeee

Answers

Answer:

10

Step-by-step explanation:

the diagram shows a track composed of a rectangle with a semicircle on each end. the area of the rectangle is 4,000 square meters. what is the perimeter of the track?

Answers

Answer:14400

160

=

90

Step-by-step explanation: 90

π

=

90

π

 If you are using an approximation such as 3.14 for  

π

, multiply that by 90

Add  

160

2

to the circumference since the lengths of the rectangle are also part of the perimeter.

160

2

=

320

90

π

+

320

232.7449 rounded to the nearest whole number? please help​

Answers

Answer:

233

Step-by-step explanation:

Look at the tenths place. It is above 5 so you round to 233,

Answer:

233

Step-by-step explanation:

Simple, 7 is closer to 10 than 0, round up to 233.

When a positive number is added to its square, the sum is 240. Find the number,

Answers

Answer:

15

Step-by-step explanation:

Good luck

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