A number minus twice another number is 4. Three times the first number plus two times the second number is 12. What are the numbers?

Answers

Answer 1

Answer:

4 and 0

Step-by-step explanation:

I hope this helps

Answer 2

The first number is 4 and the second number is 4.

What is the system of equation?

One or many equations having the same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.

Given:

A number minus twice another number is 4.

Three times the first number plus two times the second number is 12.

Let numbers are n and m.

According to the question;

n- 2m = 4      equation 1

3n + 2m = 12      equation 2

Now, we have the system of equation.

To solve the equation,

Add both of the equation,

4n = 16

n = 4

Then m = 0

Therefore, 0 and 4 are the numbers.

To learn more about the system of equation;

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Related Questions

just trying to pass math man

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the answer is 3x^2 +3x

hiii please help! i’ll give brainliest if you give a correct answer tysm!

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Answer:

h = 1/5

Step-by-step explanation:

The formula to find the volume of this prism is b × w × h (base × width × height). Since you are given the volume, you can divide the volume by the other two dimensions to find the height.

V = b × w × h

1/100 = 1/4 × 1/5 × h

1/100 ÷ 1/4 ÷ 1/5 = h

h = 1/5

Label the imagine I need to finish this

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Phosphate A
Sugar D
Nucleotide B
Nitrogen base C

If x = 2y + 3 and 4x – 5y = 9, what is the value of y?

Answers

Answer:

Step-by-step explanation:

y=-1 ans.

x=2*-1=3

x=-2+3

x=1 ans.

Proof:

4*1-5*-1=9

4+5=9

9=9

Answer:

9

Step-by-step explanation:


If (2x+10) and (3x+10) form a linear pair
find angles
.​

Answers

Linear pair angles are always supplementary.
So,
(2x+10) +(3x+10) = 180
5x+20 = 180
5x =180-20
5x=160
x= 160/5
x=32
Hence, the angles are 74 & 104

???????????????????¿

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I'm just going to take a chance and say 1.A, and 2.D.

14 points please guys

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9 inches
Step By Step
3 1\10

URGENT!!! Can someone help me with this? It’s volume of cones!!!

Answers

Answer:

1232 m^3 to nearest whole number.

Step-by-step explanation:

The volume of a cone = 1/3 π r^2 h     where r = radius of base and h = height.

The radius of the base = 1/2 * 14 = 7m.

The height can be found by using the Pythagoras theorem:

25^2 = h^2 + 7^2

h^2 = 625 - 49 = 576

h = √576 =  24m

So the volume = 1/3 π *  7^2 * 24

=  1231.504 m^3.



Can someone help me with this trigonometry question

Answers

Answer:  82 degrees

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

Explanation:

Apply the law of cosines to find angle C

c^2 = a^2 + b^2 - 2*a*b*cos(C)

19^2 = 11^2 + 17^2 - 2*11*17*cos(C)

361 = 121 + 289 - 374*cos(C)

361 = 410 - 374*cos(C)

361 - 410 = -374*cos(C)

-49  = -374*cos(C)

-374*cos(C) = -49

cos(C) = (-49)/(-374)

cos(C) = 0.131016042780749  ..... which is approximate

C = arccos(0.131016042780749)

C = 82.4716905247836

C = 82 degrees

Notes:

arccos is shorthand for "arccosine". It is the same as inverse sine.Make sure your calculator is in degree mode. You can check by computing cos(60) and you should get 0.5

Determine if 20:14 and 80:56 is equivalent

Answers

Answer:

they are equivalent to 4

Step-by-step explanation:

Answer:

TRUE

Step-by-step explanation:

lets change it to a different question

does [tex]\frac{20}{14}=\frac{80}{56}[/tex]

can someone help please

Answers

Answer:

39.3078

Step-by-step explanation:

i am not for sure but i belive this is correct:)

3х+4y=7 make y subject​

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Here's my answer........................

5) Amarian scored 24 points in the second half of the basketball game.
This is 75% of the points he scored in the game. How many points did
Amarian score in the game?
(The answer is NOT 18)

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32 is the correct answer


????????i don’t understand

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Answer:

to blurry

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

the area of that square would be 9.

I NEED HELP WITH THIS !

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62.85 times so basically 63 times

Solve for x. 85+5x-10=11x+3

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The answer is x=12. I hope this helps you out

Which is the best estimate of the difference between 6 7/8 and 2 1/8?
A. 1
B. 3
C. 5
D. 8

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LeeAnn earns an annual salary of $50,000 after taxes. Her average expenses per month come to $3,350. If she saves all the money that she doesn't use to pay expenses, how much will she have in savings at the end of the year?

Answers

Answer:

$9800

Step-by-step explanation:

Given that:

Annual salary = $50,000

Average monthly expenses = $3350

Average amount spent per annum:

Number of months in a year = 12

12 * $3350 = $40,200

Since, all amount not used as expenses is saved :

Total amount saved = $50,000 - $40,200

Total amount saved = $9800

Answer:

$9,800, just took the test

Step-by-step explanation:

took the test

Colin buys a car for £28100.
It depreciates at a rate of 4% per year.
How much will it be worth in 6 years?
Give your answer to the nearest penny where appropriate.

Answers

Answer:

The amount the car will be worth after 6 years is £21,917 and 22 pence

Step-by-step explanation:

The amount for which Colin buys the car, PV = £28,100

The amount by which the car depreciates each year, r = 4%

The number of years after which the value of the car is sought, n = 6 years

The future value, FV, based on an annual depreciation is given as follows;

[tex]FV = PV \times \left ( 1 + \dfrac{r}{100} \right ) ^n[/tex]

Substituting the known values gives;

[tex]FV_6 = 28,000 \times \left ( 1 - \dfrac{4}{100} \right ) ^6 = 21,917.22[/tex]

Therefore, the amount the car will be worth after 6 years, future value FV₆ = £21,917 and 22 pence

Answer please please

Answers

Answer:

t>-2

Step-by-step explanation:

So Act like this is an equation and add -3 to both sides:

t>-2

Thats your answer!

The correct choice should be #1

A cherry pie has a 16 inch diameter. What is its approximate area? Round to the nearest hundredth. (Use 3.14 for π)

Answers

Answer:

200

Step-by-step explanation:

Formula to find the area: πr²

First, find the radius: 16 ÷ 2 = 8

The radius is 8. So...

= 3.14 (8²)

= 3.14 × 64

= 200.96

Rounded to the nearest hundredth: 200

Answer:

200.96

Step-by-step explanation:

A=3.14r^2(formula for area of a circle)

r=16/2=8

r=8

A=3.14*8^2=200.96

Which table represents a linear function?

Answers

Answer: table 1.

Step-by-step explanation: This is because the x-axis is going up by 2 and the y-axis is also going up by 2. There is a pattern and when you would graph it, it will be linear as it goes up by the same amount

A homeowner wishes to put a fence around a space in her yard to create a dog pen. The space that she wants to fence in is shown below where each unit on the graph represents one foot. How many feet of fencing will the homeowner need to build the dog pen? A 38+4 the square root of 2. B 54. C 52. D 36+10the square root of 2

Answers

Answer: its D

Step-by-step explanation:

Not sure how I would go about solving this problem. Any help would be appreciated

Answers

you can figure out that angle 5 equals 81 because 52 + 47 + 81 = 180, angle 4 = angle 5 (81) + 52 so angle 4 is 133 angle 1 is angle 5 (81) + 47 so angle 1 is 128. Knowing these angle 2 would be 52 and angle 3 would be 47

for simple answers

angle 1 = 128
angle 2 = 52
angle 3 = 47
angle 4 = 133
angle 5 = 81

Find the coordinates of the point where y-4x=1 crosses the y axis

Answers

Answer:

The coordinate is (0,1) .

Step-by-step explanation:

A linear equation is given to us and we need to find the point at which it will cut y axis . The given eqution is y - 4x = 1. We know that at y axis x coordinate is 0. So on substituting x = 0 , we have ;

Put x = 0 :-

⇒ y - 4x = 1

⇒ y - 4*0 = 1

⇒ y - 0 = 1 .

⇒ y = 1 .

Hence the required co ordinate is ( 0 , 4 ).

hii can someone plsss pls help me asap?!

Answers

Answer:

The slope is 2/1(rise over run)

So,2/1 is 2

Answer is 2

Jorge Claims that the distance between his house and the library is 13 miles. His city is placed on a coordinate plane. Jorge's House is at the coordinates (5, 1), the mall is at coordinates (2, 11) and hte Library is at cordinates (10, 13). What equation verifies his claim?

Answers

Answer:

House coordinate = (5, 1)

Library coordinate = (10, 13)

Step-by-step explanation:

Given :

House coordinate = (5, 1)

Library coordinate = (10, 13)

Distance between house snd library :

Distance = sqrt[(x2 - x1)² + (y2 - y1)]

x1 = 5, x2 = 10, y1 = 1, y2 = 13

Distance = sqrt[(10 - 5)² + (13 - 1)²]

Distance = sqrt[(5² + 12²)]

Distance = sqrt(25 +144)

Distance = sqrt(169)

Distance = 13

HEEEEEELP IF U CAN EXPLAIN PLEASO DO IT TANK U

Answers

2 is congruent to 5. 180-130=50. Answer would be 50

Answer:

130 degrees

Step-by-step explanation

Angle 6 is 130 degrees because it has a vertical angle relationship with the angle measure of 130 degree

Angle 6 and 2 are equal because of the corresponding angle relationship

OR

The angle measure of 130 degrees have an alternate interior angle relationship with angle 2 which makes them equal

Therefore angle 2 is 130

Hope it helped :))

What is 27.9789767993 round to nearest tenth

Answers

Answer:

28.0

Step-by-step explanation:

if rounding to the nearest tenth then the number in the hundredth determines what to do - if the number in hundredths is '5 and above, give it a shove'

meaning in this case the 7 bumps the 9 up by one; but a nine will carry over and bump the number in the ones place up by one

Answer:

28

Step-by-step explanation:

Hi there!

This decimal is a tricky one.

we know we’re rounding to the nearest tenth, so the hundredths place will come in handy.

Since there is a 7 in the hundredths place, we know we’re going to round up, but we have a 9 in the tenths place, so it would become a ‘10’, which is just going into the next whole number, which is 28.

I hope this helped!

Divide 3 1/2 divided by 1/2 in simplest form

Answers

I believe the correct answer is 7 :)

Answer:

7

Step-by-step explanation:

For the problem:

3 1

2

÷  

1

2

= ?

Convert any mixed numbers to fractions:

3 1

2

=  

7

2

Division of fractions is equivalent to multiplication by the reciprocal of the second fraction:

7

2

÷  

1

2

=  

7

2

×  

2

1

Once rearranged, multiply all of the numerators by each other. Do the same with the denominators and form a new fraction with these values:

7 × 2

2 × 1

=  

14

2

The Greatest Common Factor (GCF) of 14 and 2 is 2. The result can be simplified by dividing both the numerator and denominator by 2.

14

2

=  

14 ÷ 2

2 ÷ 2

= 7

The result is:

3 1

2

÷  

1

2

= 7

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