find the solution to the following system of equations using substitution or elimination​

Answer:

Step-by-step explanation:

2,28,80

Answer:

2

28

80

Step-by-step explanation:

Answer:

0 pennies

Step-by-step explanation:

Answer:

None

Step-by-step explanation:

If there is no measurment of hieght or width then there is no answer

Answer:

We have been given that a car can travel 476 miles on 14 gallons of gas and we are asked to write an equation relating the distance d to the number of gallons g.

We can set an equation as distance traveled is directly proportional to number of gallons used in travelling that distance.

Now we will find out K(number of miles traveled in one gallon of gas) by substituting our given values in this equation.

Therefore, we can see that car travels 34 miles in one gallon of gas.

Now we can use this information to find out how many gallons of gas does this car need to travel 578 miles.

Let us divide number of miles to be traveled by number of miles traveled in one gallon of gas to find out number of gallons of gas needed.

Therefore, car need 17 gallons of gas to travel 578 miles.

Step-by-step explanation:

Step-by-step explanation:

476=14

578=X

578*14/476

8092/476=17

So the answer is 17 gallons

6

Step-by-step explanation:

anything times 2 add it by that number

example: 2×7 is the same as 7+7

Answer:

1. complementary

2. not complementary or supplementary

3. not complementary or supplementary

4. complementary

5. supplementary

Step-by-step explanation:

You can tell if two angles are complementary if their combined angle values add up to 90 degrees

[tex]A+B=90[/tex]

You can tell if two angles are supplementary if their combined angle values add up to 180 degrees

[tex]A+B=180[/tex]

If they don't add up to these values then they are neither complementary nor supplementary

[tex]A+B\neq 90[/tex]        [tex]A+B\neq 180[/tex]

plz mark me brainliest. :)

Answer:

Its  7/3 or the second one

Step-by-step explanation:

Answer:

Solving the identity, tan(A) = √7/3

question after is

What is cot(A)? -3√7/7

Step-by-step explanation:

someone make me the brainliest

Answer:

2) 520

3) 135

4) 490

5) 850

Step-by-step explanation:

2) 10 regular for every 2 premium. so 12 total. Then we do 624 divided by 12 so we get 52. So we multiply 10 by 52 and 520. So they have 520 regular subscribers.

3) 3 short sleeves for every 9 long sleeves. So 12 in total. 540 divided by 12 is 45. 45 times 3 is 135. So 135 short sleeves were sold.

4) 7 teens for every 2 adults. so 9 in total. 630 divided by 9 is 70. 70 times 7 is 490. So 490 of the people who voted were teens.

5) For every 10 songs he like there was 5 he disliked. So 15 in total. 1275 divided by 15 is 85. 85 times 10 is 850. He liked a total of 850 songs.

I hope I helped! <3

Answer:

531 cm^2  approx

Step-by-step explanation:

Given data

Diameter= 26 cm

radius= d/2= 26/2= 13 cm

Area= πr^2

substitute

A= 3.142*13^2

A= 3.142*169

A= 530.998

A= 531 cm^2  approx

the answer is 150

I hope im not wrong

Answer:

23 yards

Step-by-step explanation:

During a test flight, Jeri's rocket reached a height of 18 yards. This was 7 yards less than the height of Devon's rocket. Write and solve a subtraction equation to find the height of Devon's rocket.

Let us represent the height of Devon's rocket = x

18 yards = x - 7 yards

x = 18 yards + 7 yards

x = 23 yards

The height of Devon's rocket = 23 yards

Answer:

x = 5

Step-by-step explanation:

The sum of the angles of a triangle is 180°.

(180 - 18x + 5) + (-1 + 8x) + 46 = 180

⇒ 180 - 18x + 5 - 1 + 8x + 46 = 180

⇒ -10x + 230 = 180

⇒ -10x = -50

⇒ x = 5

Answer:

3x+12/10 simplified is =3x+ 6 /5

Step-by-step explanation:

x+2 /x^2 +6x +8=  7x3+8x2+2 x2

Answer:

x^4 - 16x^3 + 96x^2 -256x + 256

Step-by-step explanation:

The coefficients of this using the pascal triangle is ;

1 4 6 4 1

Thus, we have that;

1(x^4•(-4)^0) + 4(x^3)(-4)^1 + 6(x^2)(-4^2) + 4(x^1)(-4)^3 + 1(x^0)(-4)^4

= x^4 - 16x^3 + 96x^2 -256x + 256

Answer:

Sin A = 0.38462

Step-by-step explanation:

From the trigonometric function,

Sin A = [tex]\frac{Opposite}{Hypotenuse}[/tex]  ................... 1

So that, applying the Pythagoras theorem to determine the value of hypotenuse,

[tex]/Hyp/^{2}[/tex] = [tex]/Opp/^{2}[/tex] + [tex]/Adj/^{2}[/tex]

            = [tex]24^{2}[/tex] + [tex]10^{2}[/tex]

            = 576 + 100

[tex]/Hyp/^{2}[/tex] = 676

Hyp = [tex]\sqrt{676}[/tex]

       = 26

The hypotenuse of the triangle is 26.

Thus, from equation 1;

Sin A = [tex]\frac{10}{26}[/tex]

Sin A = 0.38462

Answer:

6 bricks

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

12 divide by 2 you will get six or skip count by 2 and when you get to 12 count how many numbers you have then you will get the answer

Answer:

3024

Step-by-step explanation:

It is basically asking how many ways you can order something so you're gonna need a calculator.

Answer:

Refer to explanation..

Step-by-step explanation:

Since x represent same number when if it is used multiple times..

40 - 3 - 3 = 34 (Find out how many is 4 x)

4x = 34

X = 34 ÷ 4 = 8.5

I don't know what the question is finding for, if it's breadth then it's 8.5, if it is finding length..

Length = 8.5 + 3 = 11.5

Answer:

Step-by-step explanation:

If the zero occur when x={5, -2, -1} then the equation must be

(x-5)(x+2)(x+1) if expansion is desired

(x^2-3x-10)(x+1)

x^3+x^2-3x^2-3x-10x-10

x^3-2x^2-13x-10

Answer:

0.5

Step-by-step explanation:

6 is half of the tiles

Answer:

135

E = - 14.5t + 135

Step-by-step explanation:

Given that, descent rate is constant ;

Elevation after 2 days = 106 m

Elevation after 6 days = 48 m

Let

Rate of elevation per day= x

Initial elevation = a

Hence,

a - 2x = 106 - - - (1)

a - 6x = 48 ___(2)

-2x + 6x = 106 - 48

4x = 58

x = 58/4

x = 14.5 meters per day

Hence, initial elevation :

a - 2(14.5) = 106

a - 29 = 106

a = 106 + 29

a = 135

Relationship between Rover's elevation, E and elapsed time, t

E = - 14.5t + 135

-14.5 = rate per day

Answer: 3.4cm

Step-by-step explanation:

Total cm = 24

Number of fish = 7

24/7 = 3.4

Answer i well say 36

Step-by-step explanation:

Answer:

x < 5

Step-by-step explanation:

Sam has less than we would be <

The amount in his pocket would be x stating that x is less than

Now we add the five at the end fishing up the inequality to be x < 5

Answer:

C

Step-by-step explanation:

Answer:

C     (20.25)

Step-by-step explanation:

Formula = A=[tex]\frac{c^2}{4\pi }[/tex]

A=[tex]\frac{9^2}{4\pi }[/tex]

A=81/4pi

Area=20.25[tex]\pi[/tex] meters

Answer:

I think it's 8.7

Step-by-step explanation:

if you divide 6.5 by 3, you get 2.16666666667, so that is how long it takes to make 1 CD liable. Multiple that by 4 and round and you get 8.7.

If I'm wrong I apologize :(

Answer:

2 1/6 berries

Step-by-step explanation:

Sam has 2 1/2 pounds of blueberries. Ben also has some blue berries. Together, they have 4 2/3 pounds of blueberries

Total number of berries = Number did berries Sam has + Number of Berries Ben had

The number of berries Ben had =

4 2/3 - 2 1/2

2 ( 4 - 3/6)

2 1/6 berries

Answer:

-43/50

(decimal) = -0.86

Step-by-step explanation:

Find the LCD which is 50.

16/25 will be multiplied by 2 (because 25 x 2 = 50) so it will then equal 32/50

3/2 will be multiplied by 25 (2 x 25 = 50) = 75/50

subtract them which will give you -43/50

Answer:

(8,0) and (3,0)

Step-by-step explanation:

Answer:

There is no box

Step-by-step explanation:

Answer:

2x-3y=6

Step-by-step explanation:

To keep it short, since one of the points o the equation 2x-3y=6 is on the line and is the center of the non rigid transformation we can stretch or compress however long we want, the equation or slope will stay the same since slopes are proportional for example the slope in this problem is 2/3. If we multiply the line by a scale factor of 2, the lines are similar and the slope is 4/6 which is the same as 2/3. So the equation stays the same