Could someone help me really confused on how to work them out

 Could Someone Help Me Really Confused On How To Work Them Out

Answers

Answer 1

Answer:

Step-by-step explanation:

We are going to solve the system by subtracting one equation from another in this case the second from the first.

Now we are going to divide 30 by 6 which will give you the value of x.

Now we will substitute x into one of the equations to solve for y.

Now we multiplied 6 by 5.

Now we will subtract 30 from 60 giving you the value of 2y.

Now you divide 30 by 2 giving you the value of y.

Now check you answers by inserting the values you got for x and y into one of the original    .    

Answer:  Each solo act will last 5 minutes and each ensemble act will last 15 minutes.


Related Questions

What is 3 1/4 x 6 1/8

Answers

Answer:

[tex]\frac{637}{32} or 19\frac{29}{32}[/tex]

Step-by-step explanation:

first you have to put them into improper fractions

[tex]3\frac{1}{4}[/tex] → [tex]\frac{13}{4}[/tex]

[tex]6\frac{1}{8}[/tex] → [tex]\frac{49}{8}[/tex]

[tex]\frac{13}{4}*\frac{49}{8}=\frac{637}{32}=19\frac{29}{32}[/tex]

What is the definition of extrapolation and interpolation?

Answers

Answer:

Extrapolation means the estimation which is based on extending a known sequence of values beyond what is certainly known.

Interpolation means the estimation of a value within two known values in a sequence of values.

2. Not only is the mean of pairs of clothes purchased is 10, but the population standard deviation is 4.5. When the researcher from problem number 1 calculates a standard deviation for the distribution of sample means for her 2,950, 000 samples, is the standard deviation of sample means likely to be less than, greater than, or equal to 4.5? Explain

Answers

Answer:

Less than 4.5

Step-by-step explanation:

Given that :

Mean = 10

Population standard deviation (σ) = 4.5

Sample size (n) = 2950000

The standard deviation of sample means becomes smaller or lesser as the sample size increases according to the central limit theorem. This is because the standard deviation of sample means is obtained by dividing the population standard deviation by the square root of the sample size. Thus is called the standard error.

The standard deviation of sample means is called the standard error ; and is obtained by:

Standard Error = σ/√n

Standard Error = 4.5 / √2950000

Standard Error = 4.5 / 1717.5564

= 0.0026200

Graph the equation y=x^2-8x+7y=x on the accompanying set of axes. You must plot 5 points including the roots and the vertex.
what points do i need to plot on the graph from this equation please hurry brainlest for whoever can help and 20 points

Answers

Answer: If you're plotting 1 equation (y=x^2-8x):

(-4,16) Vertex

(0,0) root

(8,0) root

If plotting both (y=x^2-8x) & (7y=x):

(-4,16) Vertex

(0,0) root

(8,0) root

(7,1) point on line

(-7, -1) point on line

Step-by-step explanation:

The vertex of the parabolic equation y = x² - 8x + 7 will be at (4, -9).

Now, Let the point (h, k) be the vertex of the parabola and a be the leading coefficient.

Then the equation of the parabola will be given as,

y = a(x - h)² + k

The equation is given below.

y = x² - 8x + 7

Convert the equation into a vertex form. Then we have

y = x² - 8x + 7

y = x² - 8x + 16 - 16 + 7

y = (x - 4)² - 9

Hence, The vertex of the parabolic equation y = x² - 8x + 7 will be at

(4, -9).

So, The graph is given below.

More about the equation of the parabola link is given below.

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What’s the standard for

Answers

Answer:

that is high school standard and we cant see alll the answers

Step-by-step explanation:

y=-2y+4 . Hope you pass !

y=-7x+10 in standard form

Answers

Answer:

Write in standard form.

7x+y=10

Step-by-step explanation:

What is the product of –3 and 5?
(A) -15
(B) -8
(C) 8
(D) 15

Answers

A
Ha ha Ha ha ha middle finger middle finger oh middle finger middle finger for 20 what’s your location

What is the employee's gross pay?
a $818.05
b. $830.42
C. $840.59
d $852.96

Answers

Answer:

It is D

Step-by-step explanation:

Just took the test and got a 100 2021

Answer:

What is the employee's gross pay?

a. }}  $818.05

b. }}  $830.42

c. }}  $840.59

d. }}  $852.96 <<<<<<<CORRECT

Step-by-step explanation:

Edge 2021

Help me guys PLZZ
i'll mark brainllest
Describe two real-life applications of irrational numbers.

Answers

Answer:

Calculus and other mathematical domains that use these irrational numbers are used a lot in real life. Irrational Numbers are used indirectly.

Step-by-step explanation:

If two angles of a triangle each measure 70°, the triangle is
described as

Answers

Answer:

An isosceles triangle

Step-by-step explanation:

An isosceles triangle has 2 of the same sides and angles.

Plz give me brainliest.

The given triangle with two angels is 70° and will be the isosceles triangle.

What is the isosceles triangle?

A summation, also abbreviated as a sum, is the consequence of adding two or more numbers or quantities. Usually are always an equivalent number of terms in a summation.

There could be only two terms, and there could be one hundred, thousand. There seem to be summations with an infinite number of representatives.

On another hand, an isosceles triangle is a triangle in which any two sides or angles will be the same.

Hence given that the triangle has

Angle first = 70°

Angle second = 70° since there are two angles same so there will also be two sides equal so it will be an isosceles triangle.

For more information about the isosceles triangle

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Help Plz best answer will get marked brainliest.

Answers

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[tex]4) \: \: \: R = 28[/tex]

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[tex]5) \: \: \: P = 124[/tex]

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[tex]6) \: \: \: x = 20[/tex]

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[tex]7) \: \: \: y = 6[/tex]

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[tex]8) \: \: \: x = 26[/tex]

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somebody please help! i will give brainliest!!

Answers

Answer:

h<0

Step-by-step explanation:

27h-61h>61h-61h

-34h>0

-34h/-34h>0/-34h

H<0

4. H(17)+H(27)=h(29)

H•17 +h(21)=h(29)

17h+h(21)=h(29)

H17 +h•(21)=h(29)

17h+h(21)=h(29)

combine it

17h+21h=h(29)

38=h(29)

38h=h•29

38h=h29

38h-29h=h29-29h

9H=0

divide both side

9h/9 =0/9

H=0/9 or H=0

Multiply the following number. Reduce the answer to lowest terms.
"3 1/8 x 1/7"

A. 35/57
B. 3 25/56
C. 25/56
D. 3 1/56

Answers

Answer:

ASSET Math 1 Answer Key

Step-by-step explanation:

C is the correct answer

plz hurry! What is the slope? Draw it on there if you can?​

Answers

Answer: slope is 2/3

Answer: the answer is 2/3

Step-by-step explanation:

area
of
triangle is 60cm² and
the height is 8cm what is the base?​

Answers

Answer:

b= 15 cm

Step-by-step explanation:

Answer:

15 cm

Step-by-step explanation:

Area of a triangle a = 1/2 * base * height

60 = 1/2 * base * 8

base = 60* 2 / 8 = 15 cm

Is the relation a function? {(-7, 14), (9, -7), (14, 7), (7, 14)}​

Answers

Yes, because they all can be graphed and if you use the line hack it works.

Plzz helppp plzzzzzzzzzzz asap

Answers

Answer D!!!!!!!!!!!!!!!!

Evelyn jogged 4.5 miles. How many feet did she run?

Answers

Answer:

23,760 feet

Step-by-step explanation:

1 mile is 5280 feet, so we multiply both sides of the equation

Answer:

23760 feet

Step-by-step explanation:

1 mile = 5280 feet

4.5 miles x 5280ft = 23760ft

What's the value of r? 6 - 1 + 6r = 11

Answers

Answer:

r=1

Step-by-step explanation:

6-1+6r=11

add 6 and -1

5+6r=11

subtract 5 for both sides

6r=6

dived 6 from both sides

r=1

Please help me with number 4

Answers

Answer:a 1/5 b 2/5

Step-by-step explanation:Monday is they day after Sunday there for according to that it would be 1/5 and b if it’s sunny Sunday it’s 1/5 higher of a chance two days after than one day.

Plz help and show work

Answers

Answer:

NM=27

Step-by-step explanation:

x+15+2x+34=13

49+3x+13

3x=36

x=12

NM=(12)+15

NM=27

Let f(x) = 3x^2−8x + 5 and let g(x) = 2x −8. Find f(x) − g(x) .

Answers

3x^2 -8x +5 - (2x -8)
3x^2 - 8x + 5 - 2x + 8
3x^2 -10x + 13

Fie multimea:A={a,b,c}; B={c,d,e}; C={a,c,e}. Caror multimi le apartine: a) elementul a b) elementul b

Answers

Answer:

a. A si C

b. A

Step-by-step explanation:

Aici, vrem să cunoaștem seturile la care aparțin elementele;

a) Elementul

a putem vedea elementul a în mulțimea A și C

b) Elementul b

putem vedea elementul b numai în mulțimea A

PLS HELP ME!!! Graph each inequality on the xy-plane below it.

Due today

Answers

Answer:

Try searching for an website called Desmos and go to the graphing calculator if you need help again.

Go to the website Desmos! It is an online graphing calculator that helps you graph things! Sorry I would insert pics but I need to delete stuff off my phone! Sorry! Hope this helps!

What’s the perimeter and area?

Answers

Answer:

Perimeter= 34a

Area= 42a

Step-by-step explanation:

Perimeter: 3a + 3a + 3a+ 3a +3a + 5a +5a + 9a = 34a

Area: (3a x 9a) + (3a x 5a) = 42a

Choose the equivalent number.
4,000 + 800 + 20+3=

Answers

Answer:

4823 is the answer you're welcome

Which of the following is equivalent to the expression below?
(3) (4) (-3/4)

A. -12(-3/4)
B. -13(3/4)
C. -12- 3/4
D. -12 + 3/4​

Answers

The expression (3)(4)(-3/4) is equivalent to -9.

None of the given options is correct.

Given information:

The expression is (3) (4) (-3/4).

Multiplying 3, 4, and -3/4, we get:

(3)(4)(-3/4),

Simplify the parenthesis,

= 12(-3/4)

Multiplying,

= -36/4

Divide -36 by 4, and we get,

= -9

Therefore, the expression is equivalent to:-9

To learn more about the PEMDAS;

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Pls help with this it’s math

Answers

Answer:

The slope is undefined.

Step-by-step explanation:

A vertical line has undefined, or infinite, slope. If you attempt to find the slope using rise over run or any other slope formula, you will get a 0 in the denominator. Since division by 0 is undefined, the slope of the line is undefined.

The distance Train A travels is represented by d = 80t, where d is the distance in kilometers
and t is the time in hours. The distance Train B travels at various times is shown in the
table. What is the rate of each train? Which train is going faster?
Time (hours) Distance (km)
2
190
4
380
5
475
The rate of Train A is 160|
km per hour.
The rate of Train Bis
km per hour.
Train (select)
is going faster.

Answers

Answer:

Train B is going faster than Train A

Step-by-step explanation:

The distance travelled by Train A, d = 80t

The distance travelled by Train B is given as follows;

Time (hours)  [tex]{}[/tex]                     Distance (km)

2                   [tex]{}[/tex]                         190

4                   [tex]{}[/tex]                         380

5                   [tex]{}[/tex]                         475

Therefore, we have that the rate of change of Train B is given as follows;

(475 - 380)/(5 - 4) = 95 km/h

(475 - 190)/(5 - 2) = 95 km/h

The rate of change of Train B = 95 km/h

While the distance covered by Train A per 1 hour, t = 1 is given as follows

Distance covered in 1 hour for Train A, d = 80 ×  1 = 80 kilometers

The rate of train A = Distance covered/(Time in which the distance was covered)

The rate of train of change A = 80 km/(1 hour) = 80 km/hour

The rate of train of change A = 80 km/h

Therefore, Train B is going faster than Train A.

Your family is driving to the mountains for the weekend You travel 200 kilometers in the first two hours during the next hour you stop for lunch and only travel 25 kilometers. What is your average speed. Can you please use (D=st)

Answers

Answer: (D= 87.5 kilometers per hour)

Step-by-step explanation: First, divide 200 by 2, which equals to 100. Next, divide 25 by 2, which is 12.5. Lastly, subtract 100 minus 12.5, which equals 87.5. You should end up with a result of (D= 87.5 kilometers per hour).

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