Solve these simultaneous equations:

5x - Зу = 15

4x -3y = 6

Answer:

Dolls missing value: 8

balls missing value: 18

Step-by-step explanation:

You would just add whatever the first number is.

Equivalent ratio for dolls: 4:8

equivalent ratio for balls: 6:18

Answer:

16 is double 8, so just double the price: 2.64 x 2= $5.28

then, subtract to find the dufference: 5.28 - 4.48= $.80

then, divide that by the oz:

.80/16= 5 cents per ounce

Answer:

0.05

Step-by-step explanation:

Answer:

The last one (f) hope u still have time

Answer:

Answer:

the length of the base of the pyramid =2×58=116

since the mid segment line from the midpoint is half of the third one.

Answer:

the length of the base of the pyramid =2×58=116

Step-by-step explanation:

Answer:

if you help me, i help you

Answer:

x = 2.5

Step-by-step explanation:

2.4x - 6 = 0

2.4x - 6 + 6 = 0 + 6

2.4x = 0 + 6

2.4x = 6

2.4x ÷ 2.4 = 6 ÷ 2.4

x = 6 ÷ 2.4

x = 2.5

Answer:

Michael took his 6th sip at 4 : 05

Step-by-step explanation:

Duration in which Michael takes a sip of water = 20 minutes

Therefore, he will take his sixth sip after (20 × 6) = 120 minutes Or after 2 hours

If he takes first sip of water at 3 : 05

Then he will take his sixth sip at ( 3 : 05 + 2 : 00)

Time at his sixth sip = 5 : 05

Answer:

cant see the question pls help me

Step-by-step explanation:

31

Answer:

8 kg of apples

Step-by-step explanation:

First, we need to find how much 1 kg of apples cost. We can do this by dividing $51 and 10 kg:

51÷10=$5.1

Therefore, 1 kg of apples cost $5.10.

Now, to find how many apples we can get for $40.80, we can divide $40.80 by $5.10:

40.80÷5.10=8

Therefore, we can get 8 kg of apples for $40.80.

I hope this helps!

Answer:

8kg

Step-by-step explanation:

51$ ÷ 10 = price of one kg

51$ ÷ 10 = 5.1$

40.80$ ÷ 5.1$ = 8kg

Answer:

(x + 6)(x-4) = -16

x² + 2x -24 = -16

x² + 2x - 8 = 0

(x + 4)(x-2) = 0

x = - 4 or x = 2

Step-by-step explanation:

Answer:

Divide each term in G(6)=17−(2/3)x by 6.

G(6)/6=17/6−(2/3)x⋅16

Cancel the common factor of 6.

G=17/6−(2/3)x⋅16

Simplify each term.

G=17/6−x/9

Step-by-step explanation:

Answer:I am pretty sure it is B obv that is the only one that makes enough sense (x+3.50)x65 (x)41 and the only one that makes sense to me is B!

Step-by-step explanation:

Answer:

(4, 2 ) and (5, - 4 )

Step-by-step explanation:

(3)

6x + 2y = 28 → (1)

x = 2y → (2)

Substitute x = 2y into (1)

6(2y) + 2y = 28

12y + 2y = 28

14y = 28 ( divide both sides by 14 )

y = 2

Substitute y = 2 into (2) for corresponding value of x

x = 2(2) = 4

solution is (4, 2 )

(4)

x + y = 1 → (1)

2x + y = 6 → (2)

Rearrange (2) expressing y in terms of x by subtracting 2x from both sides

y = 6 - 2x → (3)

Substitute y = 6 - 2x into (1)

x + 6 - 2x = 1

- x + 6 = 1 ( subtract 6 from both sides )

- x = - 5 ( multiply both sides by - 1 )

x = 5

Substitute x = 5 into (3) for corresponding value of y

y = 6 - 2(5) = 6 - 10 = - 4

solution is (5, - 4 )

Answer:

He/she are cute awwwwwwwww TuT

Step-by-step explanation:

Answer:

i- is that a a cake?!

Step-by-step explanation:

Answer:

I believe it's x<6

Step-by-step explanation:

Answer:

Step-by-step explanation:

All you do is multiply 75 x .25 = 18.75

Subtract 75 - 18.75 = $56.25

Answer:14x+4

Step-by-step explanation:

edit: the answer is 14x + 4

(the reason i edited was to cause less confusion)

Answer:

2

Step-by-step explanation:

Answer:

should be 5  1/4

Step-by-step explanation:

Answer: 4 yards 2 ft

Step-by-step explanation:

1 yard = 3 feet

8 yards - 3 yards = 5 yards - 1 yard = 4 yards

3 ft + 1 ft - 2ft = 2 ft

answer is 4 yards 2 feet

Answer:

Simplify means to make smaller or more simple.

Step-by-step explanation:

You need to make the number which needs to be simplified into a number lower than the original number.

For example:

"4" would simplify to "2"

beace half of 4 is 2. This could further be simplifed as "1" is half of 2.

so if there was a fraction:

4/8

the numerator would simplify to 1 and the denominator would simplify to 2 because whatever you do to the top you must do to the bottom. The numerator stops simplifying at 1 and the denominator stops simplifying at 2

so

4/8 = 1/2

9514 1404 393

Answer:

  f, h, g

Step-by-step explanation:

The axis of symmetry for a vertically-opening parabola is the line ...

  x = constant

where the constant is the x-coordinate of the vertex.

__

h(x)

The equation of f(x) is given in vertex form ...

  f(x) = a(x -h)² +k . . . . . vertex: (h, k)

where (h, k) = (-4, 1).

The axis of symmetry of f(x) is x = -4.

__

g(x)

The equation of g(x) is given in standard form ...

  g(x) = ax² +bx +c

The line of symmetry for this parabola is ...

  x = -b/(2a) = -(-16)/(2(2)) = 16/4 = 4

The axis of symmetry of g(x) is x = 4.

__

h(x)

The x-coordinate of the vertex can be read from the graph:

  x = 1

The axis of symmetry of h(x) is x = 1.

__

From smallest to largest, the rank is f(x), h(x), g(x).

Answer:

the answer is D your welcome

Answer:

x^2 - 10x + 25 = 17

Step-by-step explanation:

x^2 - 10x = - 8

Now x^2 - 10x = (x - 5)^2 - 25, so

(x - 5)^2 - 25 = -8

(x - 5)^2 = -8 + 25

x^2 - 10x + 25 = 17..

Answer:

The first person that told the answer has it correct so beleive the answer

Step-by-step explanation:

Answer:

Check pdf

Step-by-step explanation:

Answer:

25) cos X = 12/37            cos X = 0.3243                         X = 71.08 degrees

26) tan C = 32/24            tan C = 1.3333                          C = 53.13 degrees

27) sin Z = 15/25              sin Z = 0.6                                   Z = 36.87 degrees

28) sin A = 32/40             sin A = 0.8                                 A = 53.13 degrees

29) sin Z = 40/50             sin Z = 0.8                                  Z = 53.13 degrees

Answer:

25) 0.3243

26) 1.3333

27) 0.6000

28) 0.8000

29) 0.8000

Step-by-step explanation:

sin = opp/hyp

cos = adj/hyp

tan = opp/adj

25) cos X = 12/37 = 0.324324324

26) tan C = 32/24 = 1.33333333

27) sin Z = 15/25 = 0.6

28) sin A = 32/40 = 0.8

29) sin Z = 40/50 = 0.8

Answer:

i think that they will get the same amount after a week's pay

Answer:

10 weeks

Step-by-step explanation:

You start by looking for the number that would help make these equal. it would have to be a number that ended with a 5 or 0. that would be 10. 10x7=70. 70+50=120

120

then 10x10=100+20

120

they will be the same at

10

Answer:

1) We have the system:

5*x - 3*y = 15

4*x + 3*y = 6

To solve this, we first need to isolate one of the variables in one of the equations, let's isolate x in the first equation:

x = 15/5 + (3/5)*y = 3 + (3/5)*y

Now we can replace this in the other equation to get:

4*( 3 + (3/5)*y) + 3*y = 6

and solve this for y.

12 + (12/5)*y  + 3*y = 6

(12/5 + 3)*y = 6 - 12 = -6

(12/5 + 15/5)*y = -6

(27/5)*y = -6

y = -6*(5/27) = 1.11

Now we can replace this in the equation:

x = 3 + (3/5)*y

To get the value of x.

x = 3 + (3/5)*1.11 = 3.67

Then the solution of this system is the point (3.67, 1.11)

2) Now we have the system:

2*x + 5*y = 26

4*x + 3*y = 24

The solution method is the same as before:

x = 26/2 - (5/2)*y = 13 - (5/2)*y

Now we replace this in the other equation:

4*( 13 - (5/2)*y) + 3*y = 24

52 - 10*y + 3*y = 24

52 - 7*y = 24

52 - 24 = 7*y

28 = 7*y

28/7 = y

4 = y

now we replace this in the equatio:

x = 13 - (5/2)*y

x = 13 - (5/2)*4 = 13 - 10 = 3

The solution of this sytem is (3, 4)

3) Now we have the system:

3*x + 3*y = 39

2*x - 3*y = -2

first we isolate x in the first equation:

x = 39/3 - 3*y/3 = 13 - y

Now we can replace this in the other equation:

2*(13 - y) - 3*y = -2

26 - 2*y - 3*y = -2

26 - 5*y = -2

26 + 2 = 5*y

28 = 5*y

28/5 = y = 5.6

Now we can replace this in the equation:

x = 13 - y

To get the x-value

x = 13 - 5.6 = 7.4

Then the solution for this system is (7.4, 5.6)

Answer:

6

Step-by-step explanation:

cuz in a normal die there r 6 outcomes

Answer:

21.......celcius scale is used....as the thermometer shows 100...and water boils at 100 degree Celsius.....( shown that water is boiling)...

22......liquid to gas