Apr 17, 1:42:09 AM
Solve the system of equations x +y = 4 and 3x + 7y = 32 by combining the
equations.

Answers

Answer 1

Answer:

(-1, 5)

Step-by-step explanation:

3 [x + y = 4]

  3x + 3y = 12

-  3x + 7y = 32

-4y = -20

y = 5

x + 5 = 4

x = -1


Related Questions

PLZ HELP
Classify each pair of numbered angles.

Drag and drop the descriptions into the boxes to correctly classify each pair of numbered angles. Each description may be used more than once.

Answers

Answer:

Angles 1 and 2 are vertical

Angles 3 and 4 are adjacent

Step-by-step explanation:

In a hydroelectricity production, water falls from a dam into a turbine wheel 49 m below. What is the velocity of water at the turbine?

A) 0 m/s
B) 15.5 m/s
C) 31 m/s
D) 46.5 m/s

Answers

Answer:

C: 31 m/s

Step-by-step explanation:

It falls from a dam.

Thus;

Initial velocity; u = 0 m/s

Height; h = 49 m

Acceleration due to gravity is 9.8 m/s²

To solve for the final velocity this, we will use Newton's third equation of motion;

v² = u² + 2gh

v² = 0² + 2(9.8 × 49)

v = √960.5

v ≈ 31 m/s

WHAT IS THE MEDIAN I WILL GIVE BRAINIEST

Answers

Answer:

5 is the median

Step-by-step explanation:

By crossing out the points on each side one by one, you could find that 5 is the median.

I believe the answer would be 5 not a 100% sure though

PLEASE ANSWER THANK U SO MUCH

Answers

Answer:

answer is 21 : 4

hope it helps ......

Answer:

k = 5.25

Step-by-step explanation:

Given y varies directly with x then the equation relating them is

y = kx ← k is the constant of proportionality

To find k use the condition y = 84 and x = 16 , then

84 = 16k ( divide both sides by 16 )

5.25 = k


Javier will have a party at home. His budget is no more than $75 for pizzas and wings.
The price of the pizza is $7.50 each and one package of wings is $5.50. Which inequality
can be used to determine the number of pizzas x and packages of wings y that Javier can
buy?
A 7.50x + 5.50y > 75
B 5.50x + 7.50y s 75
C 7.50x + 5.50y s 75
D 7.50x - 5.50y 27

Answers

Answer: 7.50x+5.50 less than or equal to 75

Step-by-step explanation:

What is the slope of the line given by the equation y = 12x?

Answers

Answer:

up 12 over 1

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

12 is before x and the b or y-intercept is 0

Hope it helps have a good day

3) 8x + 6y = 10 -8x + 6y = 2 Which statement about the system of equations is true? A) The system has exactly 1 solution B) The system has many solutions C) The system has no solution D) The system has exactly 2 solutions 3 3​

Answers

Answer:

A. Exactly one solution

Step-by-step explanation:

8x+6y=10

-8x+6y=2

0+12y=12 added two equations together

12y=12

y=1

solve for x

8x+6y=10

8x+6(1)=10

8x=4

x=1/2

Which of the following expressions shows the distributive property applied to the expression below?
z × (6 + 35)

A.
z + (6 + 35)
B.
(z + 6) × (z + 35)
C.
(z × 6) + (z × 35)
D.
z × (6 × 35)

Answers

Answer:

C. (z×6)+(z×35)

.....

.

Urgent!!!!!!!!!
Can someone please give me the correct answer choice
I will mark the first person who answer without a link brainliest.
Please help!!!

Answers

Answer:  1 -3

Step-by-step explanation:

Answer:

(0,-3)

Step-by-step explanation:

If u count the spaces and move over and then down, u end up at (0,-3).

1. Tell me if each of the following is True or False A. Angles EOD and DOC are Vertical Angles. B. Angles FOD and Angle DOC are adjacent C. Angles FOD and AOC are equal D. The sum of the measurements of Angles of AOC and BOC and equal to FOD E. FOE and DOD are completely Angles F. Angles FOA, AOB, and AOC are Supplementary Angles​

Answers

Answer:

Do you have any Images?

Step-by-step explanation:

Answer:

I don't get it.

Step-by-step explanation:

How much do you save using the better buy? 432 for 6 or 364 for 7

Answers

You will save $20 by buying 364 for 7.

Which known figures make up this unknown figure?

Answers

The known figures that make up this unknown figure are a trapezoid and a half circle.

Answer:

trapezoid and half circle.

Step-by-step explanation:

hyxetdryufgukhchfxrdtygujhftyuhuhyguhjygyu

Answers

Answer:

so the answer is: eijieljnqwsmiqwmx

did i answer it correctly let me know

Step-by-step explanation:

Destroy your keyboard by smashing each random word on the poor broken keyboard  

yea that is correct. also you should watch attack on titan it’s a pretty good show. also the plot is amazing

Define a cubic polynomial and a binomial use only one variable in each). Show how to use the Vertical Method to multiply these two.pls Quick I do not wanna FAIL

Answers

Cubic polynomial

[tex] {x}^{3} + {2x}^{2} - 5x - 10[/tex]

Binomial

[tex]2x - 3[/tex]

By vertical method of multiplication we get,

[tex] {2x}^{4} + {x}^{3} - {16x}^{2} - 5x + 30[/tex]

help plzzzzzzzzzzzzzzzzz

Answers

Answer:

100

Step-by-step explanation:

a=b a=4x4x+x+10+6x+5=1804×+x+6x+10+5=18011x=180-15165÷15 =x=15

6x+10=15×6=90+10

=100

A new laptop is on sale for $550 dollars. To pay for it you place it on your credit card which charges 12% percent interest each month

Answers

The answer would be $75 each month.

The interest amount charged on a new laptop is on sale for $550 dollars is $66.

Given that, a new laptop is on sale for $550 dollars.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Now, 12% of 550

= 12/100 ×550

= 0.12 ×550

= $66

So, interest is $66

Therefore, the interest amount charged on a new laptop is on sale for $550 dollars is $66.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ5

Is this correct???????????!!!!please gelppp

Answers

Answer:

Step-by-step explanation: it looks right to me but who knows

Answer:

Yes

Step-by-step explanation:

The line intersects the y axis at point 4 (y > 3/2 x + 4), and for every 2 squares to the right it goes 3 squares up (y > 3/2 x + 4). Also, it's the > sign, which is correct when it goes in that direction.

A bird is 50 feet above sea level, a fish is swimming 23 feet below sea level. What's the distance between the bird and the fish

Answers

Answer:

73 feet

Step-by-step explanation:

50 + 23 = 73 feet

What is the difference in length between

Answers

Answer: 7/8

Step-by-step explanation:

1 1/4 - 3/8 = 1.25 - 0.375 = 0.875 = 7/8

You have $20 to spend for cupcakes. If each cupcake costs $4, write and solve an inequality to show the maximum number of cupcakes you can buy.

Answers

You could buy 5 cupcakes
Answer:
5 cupcakes

Explanation:

20/4=5

How do you write the mixed number shown as a fraction greater than one. I'm so confused. The number shown is 3 2/4

Answers

Answer:

14/2

Step-by-step explanation:

The answer is 14/2. Hope this helps! Mark brainly please! Correct me if I am wrong.

the lines shown below are parallel. if the green line has a slope of -2/3, what is the slope of the red line?
PLEASE JUST TELL ME THE ANSWER AND DON’T GIVE ME A LINK!!!

Answers

Answer:

2/3

Step-by-step explanation:

If the line is perpendicular, multiply the slope by -1 to find the answer

Write a unit rate for the situation. Show all work!
12 goals in 3 hours

HELP THIS IS DUE IN 12 MINUTES!

Answers

Answer:

4 goals per hour

Step-by-step explanation:

[tex]\frac{goals}{hour}=\frac{12}{3}=\frac{12/3}{12/3}=\frac{4}{1}[/tex]

The unit rate would be 4 goals per hour.

Hope this helps.

Ten deer were introduced into a protected preserve. Their expected population doubles each year. Which function represents the same relationship?

Answers

Answer:

y(t)= 10 (2)^t

Step-by-step explanation:

If t is the number of years given then the expected number can be found by

y(t)= 10 (2)^t

where t takes the value 0,1,2,3, and so on.

Putting t= 0

y(t)= 10 (2)^t

y(0)= 10 (2)^0

y(0)= 10   For the start the number of deer are 10.

Putting t= 1

y(t)= 10 (2)^t

y(1)= 10 (2)^1

y(1)= 20    After 1 year it has doubled to 20

Putting t= 2

y(t)= 10 (2)^t

y(2)= 10 (2)^2

y(2)= 40      After 2 years it has again doubled to 40

Putting t= 3

y(t)= 10 (2)^t

y(3)= 10 (2)^3

y(3)= 80   After 3 years it has again doubled to 80

A water pipe takes 45 minutes to fill a
tank. How many water tanks it would fill in
6 hours.
Math

Answers

Answer:

It would fill 8 tanks

Step-by-step explanation:

45minutes = 3/4 of an hour

It would fill 6/(3/4) tanks in 6 hours

6/(3/4) = 6/3*4 = 2*4 = 8

If x = 6, then what is y in this equation

-2x + 16 = y?

1) y=-12

2)y = 22

3) y=4

4)y=-22

Answers

Answer:

y equals 4 because if you substitute solve and isolate you get that answer.

Work out the value of
x


The diagram is not drawn to scale.

Answers

The shape is a pentagon.

The interior angles of a pentagon always add up to 540°.

When you add up all the labeled angles in the picture, you get (16x + 12).

16x + 12 = 540

16x = 528

X = 33

Step-by-step explanation:

4x-25+3x+25+3x+15+4×+2x-3=360

4x+3x+3x+4x+2x-25+25+15-2=360

16x +12=360

16x=360-12

16×÷16=348÷16

×=21.75

What is the surface area of the figure?
below is a picture of the figure and the answer options
Pls help me I'm DESPERATE

Answers

Answer:

The answer is 24cm²

Step-by-step explanation:

The triangle area is given by A*½ and we get 4*2*½=6

Rectangle one is given as L*W and we solve 3*4= 12

Rectangle two is solved as L*W as well so we solved 1.5*4= 6

and we get 24cm²

Write the equation of the line that passes
through the points (-6,3) and (3,-9)

Answers

Answer:

slope intercept form:

y = -4/3x - 5

Step-by-step explanation:

hope this helps! :)

The median income for a sample of people from Chicago is about $60,000 and the
median income for a sample of people from Kansas City is about $46,000, but
researchers have determined there is not a meaningful difference in the medians.
Explain why the researchers might be correct.

Answers

Answer:

106,000 is the answer help me with my answer to

Answer:

The medians differ by $14,000, but if the IQR is larger than about $7,000, there will not be a meaningful difference between the median salaries in the two cities.

Step-by-step explanation:

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