Solve the system of equations by elimination:4p + 4q = 44p - 4q = 28

Answers

Answer 1

Answer:

p =9

q =2

Step-by-step explanation:

4p + 4q = 44  -----------(I)

4p - 4q = 28  -------------(II)

Add the equations and thus q will be eliminated and we can find the value of p.

(I)   4p + 4q = 44

(II)  4p -4q   = 28   {Now add}

     8p          = 72

       p = 72/8

p= 9

Plugin p =  9 in equation (I)

4*9 + 4q =44

36 + 4q = 44

     4q = 44 - 36

     4q = 8

        q = 8/4

q = 2


Related Questions

WILL GIVE BRAINLIEST AND I SWEAR TO GOD IF ONE MORE BOT ANSWERS AND MAKES IT TO WHERE NO ONE ELSE CAN ANSWER


One challenge of federalism is that

power and authority are concentrated in the central government and can take away people’s rights
sometimes officials from different levels of government disagree on who should be in charge of a situation
local governments have the most power, which creates problems for trade with other nations
officials from state governments have too many rules to follow to be effective leaders

Answers

Answer:

local governments have the most power

Step-by-step explanation:

I hope this is right, but federalism gives more power to the state, so local governments could potentially have more power.

Answer:

i believe it is option one: power and authority are concentrated in the central government and can take away people’s rights

Step-by-step explanation: well i mean its true the governments are corrupted and are slowly taking away our rights

What is the product when 20 3 is multiplied with 9 25 ?

Answers

Answer:

187.775

Step-by-step explanation:

20.3×9.25=

187.775

2 times a number less 4 is 20

Answers

Answer:

68?

Step-by-step explanation:

Answer:

The answer is 8

Step-by-step explanation:

Let the number be x

4x- 12=20 (12 less than 4 times a number is 20)

4x= 20 +12

4x=32

x=8

Hope this helps!!

the midpoint of (3 x, -2) and (-4, 5y) is (1,4). find x, -y​

Answers

Answer:

(x,-y): (2,-2)

Step-by-step explanation:

M=(x+x)/2,(y+y)/2

Given (1,4)=

[tex] \frac{3x - 4}{2} [/tex]

This implies:

[tex]1 = \frac{3x - 4}{2} [/tex]

[tex]3x - 4 = 2 \\ 3x = 2 + 4 \\ \frac{3x }{3} = \frac{6}{3} \\ x = 2[/tex]

In a similar way,

[tex]4 = \frac{ - 2 + 5y}{2} \\ - 2 + 5y = 8 \\ 5y = 10 \\ y = 2[/tex]

The question demanded (x,-y)

Hence(2,-2) is the answer


The table shows information about the heights of 80 plants. Find the class interval that contains the median.

(Please explain to me how you get your answer so I can get a better understanding. Thanks)

Answers

Answer:

sorry I can't help you hope you understand

Step-by-step explanation:

sorryy

2. The electrical resistance R of a wire varies inversely with the square of its diameter d. If a wire with a

diameter of 3 millimeters has a resistance of 0.4 ohm, find the resistance of a wire having the same

length and a diameter of 8 millimeters.

Answers

Answer:

[tex]0.225 \Omega =225 m\Omega[/tex]

Step-by-step explanation:

We know (Ohm second law) that [tex]R= \frac{k}{d^2}[/tex] where k inlcudes the rest of the parameters (material, lenght). In our situation we have k= [tex]0.4\cdot9 \Omega mm^2[/tex]. The moment the diameter becomes 8mm R becomes

[tex]R= {{0.4\cdot 9}\over{16}} \Omega = 0.225 \Omega[/tex]

The graph shows the savings in Andre's bank account. What is the slope of the line?

Answers

Answer:

m=5

Step-by-step explanation:

you have to use the formula y2-y1/x2-x1.

y2= 60

y1= 40

60- 40= 20

x2= 4

x1= 0

4-0= 4

20/4= 5

hope this helps

45 divided by 855 show your work!

Answers

Answer:

45 divided by 855 is a very odd number however 855 divided by 54 is 19 ... because 45 multiply by 19 is 855

The answer is 19. You can use long division or a calculator.

Juan spent $2.50 on apples and oranges. He bought 5 apples at $0.36 each. What is the most he spent on the oranges?Please this is for my homework

Answers

Answer:

$0.70

Step-by-step explanation:

5 × $0.36 = $1.80

$2.50 - $1.80 = $0.70

I hope this helped!

Think of a number. Double the number. Add 200. Divide the answer by 4. Subtract one-half the original number. What is the value of the result?

Answers

Answer:

50

Step-by-step explanation:

I will give brainliest

Answers

Answer:

y=-1/2x+2

Step-by-step explanation:

2 = 0 +b

2=b

y=-1/2x+2

Answer:

y = -1/2x + 2

Step-by-step explanation:

Follow the y = mx + b. B stands for the y-intercept, which is 2 in this case. M stands for the slope, which is the constant -1/2. Pls brainliest i want to level up ty!!!!!

fraction and percent word problem

From 2012 to 2014, the cost of limes fell by 20%. Farmers increased the cost of limes by 20% from 2012 to 2013. How much did the cost fall from 2013 to 2014, after the farmers were removed?

(A) 20%
(B) 33.3%
(C) 50%
(D) 66.6%
(E) 80%

Answers

Answer:

Step-by-step explanation:

Ruth bought two watermelons. The first watermelon was 21.6 pounds, and the second watermelon was 9.07 pounds. How many pounds of watermelon did Ruth buy?

pounds

Help with this problem pls!

Answers

Answer:

uh.. shii i dont know

Step-by-step explanation:

using continuous division, fill on the correct information in each blank . ​

Answers

Answer:

Step-by-step explanation:

For a Brainly please help me
A car travels at a rate of 60 miles per hour for 4 hours. Let y be the distance, in miles, the car travels for a given amount of time, x, in hours. What is the domain of the function?

Question 2 options:

0≤y≤4

0≤x≤60

0≤x≤4

0≤y≤60

Answers

Answer:

Step-by-step explanation:

what is the sum of 25.234 and 14.454

Answers

Answer :

What is the sum of 25.234 and 14.454

25.234

14.454

_______ +

39.688

25.234 + 14.454 = 39.688 ✔️

Please help i reward brainliest and give points

Please no spams
Please no links
Please no wrong answers
If you dont know the answer please dont put anything

Answers

What is the question?

helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

Answers

Answer:

2/1 or 20/10

Step-by-step explanation:

the line moves up 2 times every 1 time it moves right.

How do I solve
-3x+y=24
-2x=+18+5y

Answers

Answer:

Let's solve by eliminating x. Since 18 is the lowest common multiple , let's multiply the first equation by 3 and the second by -2.

18x−21y=24

−18x+10y=−2

Add the two equations.

−11y=22

Divide by -11 to isolate y.

y=−2

Substitute y=−2 into either of the 2 equations, I'll just use the second one.

9x+10=1

9x=−9

x=−1

Step-by-step explanation: that is your anwser

In plane ABC the measure of angle A equals 42° the measure of angle B is five times the measure of angle C find the measure of angle B and the measure of angle C.

Answers

Step-by-step explanation:

I think what is meant in the triangle ABC we have the three angles.

the sum of all angles in a triangle is airways 180 degrees.

so,

180 = A + B + C

180 = 42 + B + C

now, we know also that

B = 5×C

so, we can use that above

180 = 42 + 5×C + C

138 = 6×C

C = 138/6 = 23 degrees

B = 5×C = 5×23 = 115 degrees

If the scale factor of volumes of 2 similar shapes is 15.625
what will be the scale factors of lengths?

Answers

Answer:

If the scale factor is one, it means that corresponding sides are equal in length. In this case the shapes would be congruent (ie identical) rather than similar. They have the same shape, the same angles and the same size.

Step-by-step explanation:

10 to the 2 power in fraction form

Answers

Answer

5

to per power

Step-by-step explanation:

Convert to a decimal by dividing the numerator by the denominator.

Hey there!

10^2

= 10 * 10

= 100

Therefore, your answer should be: 100

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Simplify 9 - 3(5-4x)

Answers

Answer:

12x-6

Step-by-step explanation:

9-3(5-4x) distribute

9-15+12x subtract

-6+12x rearrange

12x-6

3. About 31% of the people who come to the park bring a dog. One third of people who come to the park
exercise. Which group of people represents a larger percent of the people coming to the park

Answers

Let all people be 100%

Now

People bring dog=31%

1/3rd of people

[tex]\\ \sf\longmapsto 100/3=33.3\%[/tex]

Second group people has larger percentage

please help i need to check my work

Answers

Answer:

{-2, 5}

Step-by-step explanation:

I used a calculator, pls let me know if im incorrect

x^2 − 3x − 10 = 0

Step 1: Factor left side of equation.

(x+2) (x−5) = 0  

Step 2: Set factors equal to 0.

x + 2 = 0 or x − 5 = 0

x = −2 or x = 5  

Those are the steps that the calculator said to do ^

Answer:

you got this

Step-by-step explanation:

The image point of A after a translation right 4 units and down 2 units is the point B(4,−5). Determine the coordinates of the pre-image point A.

Answers

Answer:

THE ANSWER

Step-by-step explanation:

Hope it helps❤️

Answer:

(0, -3)

Step-by-step explanation:

Help me please. Jejdjfnrttkfkrk

Answers

Answer:

I say the answer is going to be C

Step-by-step explanation:

Find the surface area of a cube
with side length 8.5 cm.

Answers

Answer:   433.5 square cm

=========================================================

Explanation:

A cube has 6 identical faces, all of which are squares.

Each square has a side length of 8.5 cm, so its area is (8.5)^2 = 72.25 sq cm.

The overall surface area, aka the area of all 6 faces combined, is 6*72.25 = 433.5 square cm

Answer:

A=433.5cm²

Step-by-step explanation:

A=6a2=6·8.52=433.5cm²

Divide.

1.61÷0.35

Enter your answer in the box.

Answers

4.6 is the answer to your question

HELP ASAP!!!!!!
I need help with the slope

Answers

Answer:

2/3

Step-by-step explanation:

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