x + 15y = 45 / x + 10y = 30 solve for x and y

Answers

Answer 1

Answer:

25y = 45/1x = 30

Answer 2

Answer:

x=10; y=2

10+15(2)=40

10+10(2)=30

so this is correct

Step-by-step explanation:


Related Questions

77÷ -11

20 points!!!!!

Answers

Answer:

7 time 11 is 77 so 77 divided by 11 is 7

Step-by-step explanation:

Answer:

It's -7

Step-by-step explanation:

(3x3 + 4r) + (3.23 – 42° – 9x) =

Answers

Answer :

12.23+4r-42°-9x

What is the name of each labeled part?
B
С
B
C
E
A
E
D

Answers

Answer:

I know that B is the nucleas but I don't know the rest sorry

Answer:

A: dendrite

B: cell body

C: axon terminal

D: axon

E: nucleus

Step-by-step explanation:

What is the image point of (2,4)(2,4) after a translation left 4 units and down 1 unit?

Answers

Answer:

(-2; 3)

.............

-1/2x = -4/5
Help please

Answers

Answer:

x = 8/5

Step-by-step explanation:

first multiply both side by -1, it makes both side positive

1x/2 = 4/5

now multiply both sides by 2 to get the x by itself

x = 8/5

if they want improper fraction x = 1[tex]\frac{3}{5}[/tex]

Answer:

x=-8/5

Step-by-step explanation:

1 point
Question: A school purchased a total of 112 student tickets and adult
tickets for a field trip to a play. The price of each student ticket was $3.50,
and the price for each adult ticket was $6.50. If the school spent a total of
$437, how many student tickets and adult tickets did the school purchase?
92 student tickets; 20 adult tickets
97 student tickets; 15 adult tickets
O
102 student tickets; 10 adult tickets
88 student tickets; 23 adult tickets

Answers

Answer:

the answer is 97 student tickets and 15 adult tickets

Step-by-step explanation:


[tex]( {x}^{2} - 8x + 6) \div (x + 2)[/tex]
how do you solve this using synthetic division? ​

Answers

x-10 is the answer search up how to do synthetic division <3

Is my math correct? It's about slop and proportions.

Answers

Answer:

yes! it's correct. Congrats :)

Step-by-step explanation:

Answer:

Your answer is correct.

Step-by-step explanation:

(−1,4);(3,0)

(x1,y1)=(−1,4)

(x2,y2)=(3,0)

m= y2−y1 /x2−x1  

0−4 /3−(−1 )

−4 /4 = −1

1.f(x)=0,5x+3 represents a function, Evaluate the function if f(12), *
A. 9
B. 3.04
C. 18
D. 15.5

Answers

It’s 9. F(12)= 6 (0.5 x 12) + 3


Pls answer I’ll give you brainly



Answers

Answer:

D

Step-by-step explanation:

Explain the difference between parallel and perpendicular lines in terms of their slopes. What form of equation of a line is easiest to determine slope?

Answers

Answer:

Parallel lines have the same slope, while perpendicular lines have completely opposite slopes. So a line has a slope of 2, a parallel line would have a slope of 2, and a perpendicular line would have a slope of -1/2. The easiest form to identify the slope is standard form because it shows the slope within the equation with out having to solve the equation or convert it into another form.

Graph.
y= 53x–4

Apparently this is way to short and I have to put in 20 more characters to get a "great" answer *eye roll* sooooooooooo blah blah blah balh there more than 20

Answers

Answer:

sorry

Step-by-step explanation:

why the hell do our teachers do this to us ;(

What is the length of AB?
B
6x
3x + 9
65°
/65°
A
C
A. 18
B. 12
C. 3
D. 9

Answers

Answer: 18

That's the answer on

Answer:

A

Step-by-step explanation:

Which fractions have the same value as −1/4 ?

Answers

Answer:

Some examples are -2/8, -3/12, -4/16.

Step-by-step explanation:

-3/12 Is One Have Ah Good Day

multiple choice question:
simplify √-72 .
A) -6√2
B) 3√-2
C) 3√2i
D) 3i√2

Answers

Answer:

im really not to sure on this one. sorry dude

Step-by-step explanation:

The answer is 6i sqr rt * 2
Closest one to the answer is A

Are the fractions equivalent?
63/72. 7/9

Answers

Answer: 9 goes into 63 7 times, but 9 does not go into

72 9 times, so the answer is no.

Step-by-step explanation:

John has a part-time job. He is payed £6.80 per hour. This week he worked for 9 and a half hours. Work out John's total pay for this week.

Answers

Answer:

£64.6

Step-by-step explanation:

Multiply £6.80 by 9

£61.2

Now divide £6.80 by 2

£3.4

Add £3.4 to £61.2

The answer is £64.6

(I think)

Hope this helps :)

A teacher gave a unit test to both of her statistics classes. The mean test grade for Class A was 77 points, with a standard deviation of 5 points, whereas the mean test grade for Class B was 80, with a standard deviation of 7 points. Kyle, in Class A, received an 82 on the test, and Caleb, in Class B, received an 87. Whose performance on the unit test was better relative to their class?

Answers

Answer:

i think they would be the same

Step-by-step explanation:

77+5=82 or 77-5=72

so he is within the range of 72-82

80+7=87 80-7=73

so he is also within the range of 73-87

Since both Kyle and Caleb scored 1 standard deviation above their respective class means, we can conclude that their performances were relatively equal.

What is standard deviation?

A standard deviation is a measure of how far apart the data is from the mean.

A low standard deviation indicates that data is clustered around the mean, whereas a high standard deviation indicates that data is more spread out.

To determine whose performance was better relative to their class, we need to calculate their z-scores, which tell us how many standard deviations a particular score is from the mean.

For Kyle in Class A:

z-score = (82 - 77) / 5 = 1

This means that Kyle's score is 1 standard deviation above the mean for his class.

For Caleb in Class B:

z-score = (87 - 80) / 7 = 1

This means that Caleb's score is also 1 standard deviation above the mean for his class.

Thus, we can conclude that Kyle and Caleb's performances were comparable because they both scored one standard deviation above their respective class means.

For more details regarding standard deviation, visit:

https://brainly.com/question/23907081

#SPJ3

What alternatives did the colonists already try in their appeal to Great Britain, according to the text? A They have attempted to reason with the British as equal citizens. B They have pledged eternal loyalty to the crown, in hopes of perhaps gaining British favor. C They have tried many things, including minor insurrections and conflicts. D They have tried many things, including petitions, argument, and pleas to parliament and to the crown

Answers

Answer:D. They have tried many things, including, petitions, argument, pleas to parliament and to the crown

Step-by-step explanation:

what is the area of this composite figure

Answers


245 m So you divide the shape into section to make a rectangle and a triangle and find the area of a rectangle or square you multiply the length times height in this case is 18*10 and to find the area of a triangle you multiply its base times its height divided by two in which un this case would be (10*13)/2 and one you add both the equations together you get your area 180+65

Helppp pleaseee:))))

Answers

1a

2f

3g

4d

5b

6e

7c

I hope this is the answer you were looking for.

True or False. a radius is a segment that connects any point on the circle to the center of that circle.

Answers

Answer:

True

Step-by-step explanation:

Answer:

true

Step-by-step explanation:

Think about it as a disk, if you were to draw a line starting at the edge of the disk and tried to draw it to the center of it you would be able to do it from any point along the outside of the circle.

PLEASE HELP MEE!!!!!!-

Answers

Answer:

26  2/3

Step-by-step explanation:

Find the ordered pairs for the x- and y-intercepts of the equation 5x − 6y = 30 and select the appropriate option below. (5 points)

Answers

x intercepts is (6,0) and y intercepts is (0,-5)

Find the length line segment between the points (-2,-1) and (5,6)?

Answers

Answer:

7√2 units

Step-by-step explanation:

( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] ) and ( [tex]x_{2}[/tex] , [tex]y_{2}[/tex] )

d = [tex]\sqrt{(x_{2} -x_{1} )^2 + (y_{2} -y_{1})^2 }[/tex]

( - 2 , - 1 )

( 5 , 6 )

d = [tex]\sqrt{(-2-5)^2 + (-1-6)^2}[/tex] = 7√2 units

John is performing an experiment in which a solution alternates between a clear color and a bluish-purple color at a regular time interval. He observes that the time interval between color changes is 30 seconds (s). Sally replicates the experiment with the same solution, but at a temperature that is 10 degrees Celsius (°C) higher. What is the most likely time interval between color changes at this higher temperature?

Answers

Answer:

15 seconds

Step-by-step explanation:

The given parameters for the experiment are;

The time it takes the solution to change from a clear color to a bluish-purple color at a given temperature = 30 seconds

The temperature at which Sally replicates the experiment with the same solution = 10°C higher than the temperature the experiment was carried out by John

Given that the process involves a change in color, which is a characteristic of a chemical reaction, and that the rate of a chemical reaction increases as the temperature of the reacting system is increased, we have time it takes for the solution to change color at a temperature increased by 10°C, will be a time lesser than 30 seconds

Answer:

B

Step-by-step explanation:

The width of a rectangle is 3/4 it’s length. The perimeter of the rectangle is 350 ft. What is the length, in feet of the rectangle

Answers

Answer:

20

Step-by-step explanation:

4 multiple ( 2+3) square 2

Answers

Answer:

100

Step-by-step explanation:

4 x (2 + 3)[tex]^{2}[/tex]

  for this equation u have to use PEMDAS so u have to solve the parenthesis first which is 5 then exponets which is [tex]5^{2}[/tex] which is 25 and 24 x 4 gives you 100

hope this helps, if im wrong sorry

The answer is; 100
4*(5)^2
4*25
100

A deep freezer is accidentally unplugged, and the temperature increases to 10ºF before an employee notices and plugs the machine back in. The initial temperature of the freezer was –5ºF. The freezer remained unplugged for an estimated 3 hours. Assuming the temperature changed at a steady rate, how much did the temperature change per hour?

Answers

Answer:

5 degrees per hour

Step-by-step explanation:

-5+n=10

+5. +5

n=15

15/3=5

Solve for x!!!! (see attached picture) HELP!!!

Answers

The answer is X = 9.2301
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